Skip to main content

Advanced Search

Projected result for your current search:: 0

Search Operators:

You can use operators in your search query to narrow down your results even more. Click on the search operator to see an explanation of how it works.
Finds documents with exactly this word group, in exactly this word order and spelling (e.g. "employer branding").
Finds documents with both search terms (e.g. sales AND bonus).
Finds documents with one or the other search term (e.g. porsche OR volkswagen).
Finds documents with all search terms. Blank space is understood as AND (e.g. man robot production).
Finds documents with no appearance of the word behind NOT (e.g. ford NOT "harrison ford").
Finds documents where the search term is mentioned at least "n" times."n" may be any number (e.g. COUNT(gear)>8).
Finds documents with both search terms in any word order, permitting "n" words as a maximum distance between them. Best choose between 15 and 30 (e.g. NEAR(recruit, professionals, 20)).
Finds documents with the search term in word versions or composites. The asterisk * marks whether you wish them BEFORE, BEHIND, or BEFORE and BEHIND the search term (e.g. lightweight*, *lightweight, *lightweight*).
Finds documents with the search term in different spellings. "?" allows only one character (e.g. organi?ation).
Special characters are understood as AND (e.g. Miller Bros. & Sons).
 Log in
Top

BMC Medical Research Methodology

Issue 1/2020

Content (300 Articles)

Clinical risk prediction with random forests for survival, longitudinal, and multivariate (RF-SLAM) data analysis

Shannon Wongvibulsin, Katherine C. Wu, Scott L. Zeger

Best practices for collecting repeated measures data using text messages

  • Open Access
  • Technical advance

Noa’a Shimoni, Siripanth Nippita, Paula M. Castaño

LEVEL (Logical Explanations & Visualizations of Estimates in Linear mixed models): recommendations for reporting multilevel data and analyses

  • Open Access
  • Caries
  • Technical advance

Maria Jose Monsalves, Ananta Shrikant Bangdiwala, Alex Thabane, Shrikant Ishver Bangdiwala

Comparison of Bayesian and frequentist group-sequential clinical trial designs

  • Open Access
  • Research Article

Nigel Stallard, Susan Todd, Elizabeth G. Ryan, Simon Gates

Reliability and validity of a sedentary behavior questionnaire for South American pediatric population: SAYCARE study

  • Open Access
  • Research article

Augusto César Ferreira De Moraes, Marcus Vinícius Nascimento-Ferreira, Claudia Lucia de Moraes Forjaz, Juan Carlos Aristizabal, Leticia Azzaretti, Walter Viana Nascimento Junior, Maria L. Miguel-Berges, Estela Skapino, Carlos Delgado, Luis A. Moreno, Heráclito Barbosa Carvalho

Validity and bias on the online active Australia survey: activity level and participant factors associated with self-report bias

  • Open Access
  • Research article

Rachel G. Curtis, Timothy Olds, Ronald Plotnikoff, Corneel Vandelanotte, Sarah Edney, Jillian Ryan, Carol Maher

Software tools to support title and abstract screening for systematic reviews in healthcare: an evaluation

  • Open Access
  • Research article

Hannah Harrison, Simon J. Griffin, Isla Kuhn, Juliet A. Usher-Smith

A modified Delphi study to identify the features of high quality measurement plans for healthcare improvement projects

  • Open Access
  • Research article

Thomas Woodcock, Yewande Adeleke, Christine Goeschel, Peter Pronovost, Mary Dixon-Woods

A computational method to quantitatively measure pediatric drug safety using electronic medical records

  • Open Access
  • Research article

Gang Yu, Xian Zeng, Shaoqing Ni, Zheng Jia, Weihong Chen, Xudong Lu, Jiye An, Huilong Duan, Qiang Shu, Haomin Li

A systematic survey of randomised trials that stopped early for reasons of futility

  • Open Access
  • Research article

S. D. Walter, H. Han, G. H. Guyatt, D. Bassler, N. Bhatnagar, V. Gloy, S. Schandelmaier, M. Briel

The TRANSFER Approach for assessing the transferability of systematic review findings

  • Open Access
  • Research article

Heather Munthe-Kaas, Heid Nøkleby, Simon Lewin, Claire Glenton

Integrated Care Search: development and validation of a PubMed search filter for retrieving the integrated care research evidence

  • Open Access
  • Care
  • Research article

Raechel A. Damarell, Suzanne Lewis, Camilla Trenerry, Jennifer J. Tieman

Using research networks to generate trustworthy qualitative public health research findings from multiple contexts

  • Open Access
  • Technical advance

Lot Nyirenda, Meghan Bruce Kumar, Sally Theobald, Malabika Sarker, Musonda Simwinga, Moses Kumwenda, Cheryl Johnson, Karin Hatzold, Elizabeth L. Corbett, Euphemia Sibanda, Miriam Taegtmeyer

A methodological quality assessment of systematic reviews and meta-analyses of antidepressants effect on low back pain using updated AMSTAR

Mohammad Hossein Panahi, Mostafa Mohseni, Razieh Bidhendi Yarandi, Fahimeh Ramezani Tehrani

Sample size issues in time series regressions of counts on environmental exposures

Ben G. Armstrong, Antonio Gasparrini, Aurelio Tobias, Francesco Sera

Flexible age-period-cohort modelling illustrated using obesity prevalence data

  • Open Access
  • Obesity
  • Research article

Annette Dobson, Richard Hockey, Hsiu-Wen Chan, Gita Mishra

Methods of competing risks flexible parametric modeling for estimation of the risk of the first disease among HIV infected men

Sahar Nouri, Mahmood Mahmoudi, Kazem Mohammad, Mohammad Ali Mansournia, Mahdi Yaseri, Noori Akhtar-Danesh

Development and preliminary validation of a brief nurses’ perceived professional benefit questionnaire (NPPBQ)

Yanli Hu, Jing Hu, Liping Li, Bin Zhao, Xiaohong Liu, Fan Li

Development of A Guideline for Reporting Mediation Analyses (AGReMA)

  • Open Access
  • Research article

Aidan G. Cashin, James H. McAuley, Sarah E. Lamb, Sally Hopewell, Steven J. Kamper, Christopher M. Williams, Nicholas Henschke, Hopin Lee

Homogeneity score test of AC1 statistics and estimation of common AC1 in multiple or stratified inter-rater agreement studies

  • Open Access
  • Research article

Chikara Honda, Tetsuji Ohyama

Validation of the French version of the Vulnerable Elders Survey-13 (VES-13)

  • Open Access
  • Research article

Joël Belmin, Lyamna Khellaf, Sylvie Pariel, Witold Jarzebowski, Lucie Valembois, John Zeisel, Carmelo Lafuente-Lafuente

A systematic review of methodology used in the development of prediction models for future asthma exacerbation

Joshua Bridge, John D. Blakey, Laura J. Bonnett

Why do you need a biostatistician?

  • Open Access
  • Debate

Antonia Zapf, Geraldine Rauch, Meinhard Kieser

Framework for personalized prediction of treatment response in relapsing remitting multiple sclerosis

E. Stühler, S. Braune, F. Lionetto, Y. Heer, E. Jules, C. Westermann, A. Bergmann, P. van Hövell

Novel citation-based search method for scientific literature: a validation study

  • Open Access
  • Research article

A. Cecile J. W. Janssens, Marta Gwinn, J. Elaine Brockman, Kimberley Powell, Michael Goodman

Charting the landscape of graphical displays for meta-analysis and systematic reviews: a comprehensive review, taxonomy, and feature analysis

  • Open Access
  • Research article

Michael Kossmeier, Ulrich S. Tran, Martin Voracek

Correction to: Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives

  • Open Access
  • Correction

Sivesh Kamarajah, Kenneth A. McLean, Aditya Borakati, Thomas M. Drake, Evelina Woin, Chetan Khatri, J. Edward Fitzgerald, Ewen M. Harrison, Aneel Bhangu, Dmitri Nepogodiev, James C. Glasbey, Joshua Burke, Michael F. Bath, Henry A. Claireaux, Buket Gundogan, Midhun Mohan, Praveena Deekonda, Chia Kong, Holly Joyce, Lisa Mcnamee, Nishkantha Arulkumaran, Samira Bell, Fiona Duthie, Jeremy Hughes, Thomas D. Pinkney, John Prowle, Toby Richards, Mark Thomas, K. Dynes, M. Patel, P. Patel, C. Wigley, R. Suresh, A. Shaw, S. Klimach, P. Jull, D. Evans, R. Preece, I. Ibrahim, V. Manikavasagar, R. Smith, F. S. Brown, P. Deekonda, R. Teo, D. P. Y. Sim, A. Borakati, A. E. Logan, I. Barai, H. Amin, S. Suresh, R. Sethi, W. Gul, W. Bolton, O. Corbridge, L. Horne, M. Attalla, R. Morley, C. Robinson, T. Hoskins, R. McAllister, S. Lee, Y. Dennis, G. Nixon, E. Heywood, H. Wilson, L. Ng, S. Samaraweera, A. Mills, C. Doherty, E. Woin, J. Belchos, V. Phan, M. Arnold, S. Sheik-Ali, R. Suresh, A. Cordaro, E. Mills, N. Lorch, D. Thomas, B. Ibrahim, S. Chee, T. Ngan, S. Pronin, N. Thakral, T. Yeoh, J. Wilson, R. Goodson, P. Molloy, M. Akhbari, W. Gul, R. Helliwell, S. Rees, M. Al-Attar, N. Griffiths, J. Mayes, P. Thomas, S. George, A. Thind, M. Kerr, F. Shafiq, I. Yasin, M. Gallagher, E. Sewart, T. Chouari, T. Gardner, N. Goergen, J. D. B. Hayes, C. S. MacLeod, R. McCormack, A. McKinley, S. McKinstry, W. Milligan, L. Ooi, N. M. Rafiq, T. Sammut, E. Sinclair, M. Smith, C. Baker, A. P. R. Boulton, J. Collins, H. C. Copley, N. Fearnhead, H. Fox, T. Mah, J. McKenna, V. Naruka, N. Nigam, B. Nourallah, S. Perera, A. Qureshi, S. Saggar, L. Sun, X. Wang, D. D. Yang, P. Caroll, C. Doyle, S. Elangovan, A. Falamarzi, K. Gascon Perai, E. Greenan, D. Jain, M. Lang-Orsini, S. Lim, L. O’Byrne, P. Ridgway, S. Van der Laan, J. Wong, J. Arthur, J. Barclay, P. Bradley, C. Edwin, E. Finch, E. Hayashi, M. Hopkins, D. Kelly, M. Kelly, N. McCartan, A. Ormrod, A. Pakenham, J. Hayward, C. Hitchen, A. Kishore, T. Martins, J. Philomen, R. Rao, C. Rickards, N. Burns, M. Copeland, C. Durand, A. Dyal, A. Ghaffar, A. Gidwani, M. Grant, C. Gribbon, A. Gruhn, M. Leer, K. Ahmad, G. Beattie, M. Beatty, G. Campbell, G. Donaldson, S. Graham, D. Holmes, S. Kanabar, H. Liu, C. McCann, R. Stewart, S. Vara, O. Ajibola-Taylor, E. J. E. Andah, C. Ani, N. M. O. Cabdi, G. Ito, M. Jones, A. Komoriyama, P. Patel, L. Titu, M. Basra, P. Gallogly, G. Harinath, S. H. Leong, A. Pradhan, I. Siddiqui, S. Zaat, A. Ali, M. Galea, W. L. Looi, J. C. K. Ng, G. Atkin, A. Azizi, Z. Cargill, Z. China, J. Elliot, R. Jebakumar, J. Lam, G. Mudalige, C. Onyerindu, M. Renju, V. Shankar Babu, M. Hussain, N. Joji, B. Lovett, H. Mownah, B. Ali, B. Cresswell, A. K. Dhillon, Y. S. Dupaguntla, C. Hungwe, J. D. Lowe-Zinola, J. C. H. Tsang, K. Bevan, C. Cardus, A. Duggal, S. Hossain, M. McHugh, M. Scott, F. Chan, R. Evans, E. Gurung, B. Haughey, B. Jacob-Ramsdale, M. Kerr, J. Lee, E. McCann, K. O’Boyle, N. Reid, F. Hayat, S. Hodgson, R. Johnston, W. Jones, M. Khan, T. Linn, S. Long, P. Seetharam, S. Shaman, B. Smart, A. Anilkumar, J. Davies, J. Griffith, B. Hughes, Y. Islam, D. Kidanu, N. Mushaini, I. Qamar, H. Robinson, M. Schramm, C. Yan Tan, H. Apperley, C. Billyard, J. M. Blazeby, S. P. Cannon, S. Carse, A. Göpfert, A. Loizidou, J. Parkin, E. Sanders, S. Sharma, G. Slade, R. Telfer, I. Whybrow Huppatz, E. Worley, L. Chandramoorthy, C. Friend, L. Harris, P. Jain, M. J. Karim, K. Killington, J. McGillicuddy, C. Rafferty, N. Rahunathan, T. Rayne, Y. Varathan, N. Verma, D. Zanichelli, M. Arneill, F. Brown, B. Campbell, L. Crozier, J. Henry, C. McCusker, P. Prabakaran, R. Wilson, U. Asif, M. Connor, S. Dindyal, N. Math, A. Pagarkar, H. Saleem, I. Seth, S. Sharma, N. Standfield, T. Swartbol, R. Adamson, J. E. Choi, O. El Tokhy, W. Ho, N. R. Javaid, M. Kelly, A. S. Mehdi, D. Menon, I. Plumptre, S. Sturrock, J. Turner, O. Warren, E. Crane, B. Ferris, C. Gadsby, J. Smallwood, M. Vipond, V. Wilson, T. Amarnath, A. Doshi, C. Gregory, K. Kandiah, B. Powell, H. Spoor, C. Toh, R. Vizor, M. Common, K. Dunleavy, S. Harris, C. Luo, Z. Mesbah, A. Prem Kumar, A. Redmond, S. Skulsky, T. Walsh, D. Daly, L. Deery, E. Epanomeritakis, M. Harty, D. Kane, K. Khan, R. Mackey, J. McConville, K. McGinnity, G. Nixon, A. Ang, J. Y. Kee, E. Leung, S. Norman, S. V. Palaniappan, P. Partha Sarathy, T. Yeoh, J. Frost, P. Hazeldine, L. Jones, M. Karbowiak, C. Macdonald, A. Mutarambirwa, A. Omotade, M. Runkel, G. Ryan, N. Sawers, C. Searle, S. Suresh, S. Vig, A. Ahmad, R. McGartland, R. Sim, A. Song, J. Wayman, R. Brown, L. H. Chang, K. Concannon, C. Crilly, T. J. Arnold, A. Burgin, F. Cadden, C. H. Choy, M. Coleman, D. Lim, J. Luk, P. Mahankali-Rao, A. J. Prudence-Taylor, D. Ramakrishnan, J. Russell, A. Fawole, J. Gohil, B. Green, A. Hussain, L. McMenamin, L. McMenamin, M. Tang, F. Azmi, S. Benchetrit, T. Cope, A. Haque, A. Harlinska, R. Holdsworth, T. Ivo, J. Martin, T. Nisar, A. Patel, K. Sasapu, J. Trevett, G. Vernet, A. Aamir, C. Bird, A. Durham-Hall, W. Gibson, J. Hartley, N. May, V. Maynard, S. Johnson, C. Mc Donald Wood, M. O’Brien, J. Orbell, T. D. Stringfellow, F. Tenters, S. Tresidder, W. Cheung, A. Grant, N. Tod, M. Bews-Hair, Z. H. Lim, S. W. Lim, M. Vella-Baldacchino, S. Auckburally, A. Chopada, S. Easdon, R. Goodson, F. McCurdie, M. Narouz, A. Radford, E. Rea, O. Taylor, T. Yu, M. Alfa-Wali, L. Amani, I. Auluck, P. Bruce, J. Emberton, R. Kumar, N. Lagzouli, A. Mehta, A. Murtaza, M. Raja, I. S. Dennahy, K. Frew, A. Given, Y. Y. He, M. A. Karim, E. MacDonald, E. McDonald, D. McVinnie, S. K. Ng, A. Pettit, D. P. Y. Sim, S. D. Berthaume-Hawkins, R. Charnley, K. Fenton, D. Jones, C. Murphy, J. Q. Ng, R. Reehal, H. Robinson, S. S. Seraj, E. Shang, A. Tonks, P. White, A. Yeo, P. Chong, R. Gabriel, N. Patel, E. Richardson, L. Symons, D. Aubrey-Jones, S. Dawood, M. Dobrzynska, S. Faulkner, H. Griffiths, F. Mahmood, P. Patel, M. Perry, A. Power, R. Simpson, A. Ali, P. Brobbey, A. Burrows, P. Elder, R. Ganyani, C. Horseman, P. Hurst, H. Mann, K. Marimuthu, S. McBride, E. Pilsworth, N. Powers, P. Stanier, R. Innes, T. Kersey, M. Kopczynska, N. Langasco, N. Patel, R. Rajagopal, B. Atkins, W. Beasley, Z. Cheng Lim, A. Gill, H. Li Ang, H. Williams, T. Yogeswara, R. Carter, M. Fam, J. Fong, J. Latter, M. Long, S. Mackinnon, C. McKenzie, J. Osmanska, V. Raghuvir, A. Shafi, K. Tsang, L. Walker, K. Bountra, O. Coldicutt, D. Fletcher, S. Hudson, S. Iqbal, T. Lopez Bernal, J. W. B. Martin, F. Moss-Lawton, J. Smallwood, A. Cardwell, K. Edgerton, J. Laws, A. Rai, K. Robinson, K. Waite, J. Ward, H. Youssef, C. Knight, P. Y. Koo, A. Lazarou, S. Stanger, C. Thorn, M. C. Triniman, A. Botha, L. Boyles, S. Cumming, S. Deepak, A. Ezzat, A. J. Fowler, A. M. Gwozdz, S. F. Hussain, S. Khan, H. Li, B. Lu Morrell, J. Neville, R. Nitiahpapand, O. Pickering, H. Sagoo, E. Sharma, K. Welsh, S. Denley, S. Khan, M. Agarwal, N. Al-Saadi, R. Bhambra, A. Gupta, Z. A. R. Jawad, L. R. Jiao, K. Khan, G. Mahir, S. Singagireson, B. L. Thoms, B. Tseu, R. Wei, N. Yang, N. Britton, D. Leinhardt, M. Mahfooz, A. Palkhi, M. Price, S. Sheikh, M. Barker, D. Bowley, M. Cant, U. Datta, M. Farooqi, A. Lee, G. Morley, M. Naushad Amin, A. Parry, S. Patel, S. Strang, N. Yoganayagam, A. Adlan, S. Chandramoorthy, Y. Choudhary, K. Das, M. Feldman, B. France, R. Grace, H. Puddy, P. Soor, M. Ali, P. Dhillon, A. Faraj, L. Gerard, M. Glover, H. Imran, S. Kim, Y. Patrick, J. Peto, A. Prabhudesai, R. Smith, A. Tang, N. Vadgama, R. Dhaliwal, T. Ecclestone, A. Harris, D. Ong, D. Patel, C. Philp, E. Stewart, L. Wang, E. Wong, Y. Xu, T. Ashaye, T. Fozard, F. Galloway, S. Kaptanis, P. Mistry, T. Nguyen, F. Olagbaiye, M. Osman, Z. Philip, R. Rembacken, S. Tayeh, K. Theodoropoulou, A. Herman, J. Lau, A. Saha, M. Trotter, O. Adeleye, D. Cave, T. Gunwa, J. Magalhães, S. Makwana, R. Mason, M. Parish, H. Regan, P. Renwick, G. Roberts, D. Salekin, C. Sivakumar, A. Tariq, I. Liew, A. McDade, D. Stewart, M. Hague, N. Hudson-Peacock, C. E. S. Jackson, F. James, J. Pitt, E. Y. Walker, R. Aftab, J. J. Ang, S. Anwar, J. Battle, E. Budd, J. Chui, H. Crook, P. Davies, S. Easby, E. Hackney, B. Ho, S. Z. Imam, J. Rammell, H. Andrews, C. Perry, P. Schinle, P. Ahmed, T. Aquilina, E. Balai, M. Church, E. Cumber, A. Curtis, G. Davies, Y. Dennis, E. Dumann, S. Greenhalgh, P. Kim, S. King, K. H. M. Metcalfe, L. Passby, N. Redgrave, Z. Soonawalla, S. Waters, A. Zornoza, I. Gulzar, J. Hole, K. Hull, H. Ishaq, J. Karaj, A. Kelkar, E. Love, S. Patel, D. Thakrar, M. Vine, A. Waterman, N. P. Dib, N. Francis, M. Hanson, R. Ingleton, K. S. Sadanand, N. Sukirthan, S. Arnell, M. Ball, N. Bassam, G. Beghal, A. Chang, V. Dawe, A. George, T. Huq, A. Hussain, B. Ikram, L. Kanapeckaite, M. Khan, D. Ramjas, A. Rushd, S. Sait, M. Serry, E. Yardimci, S. Capella, L. Chenciner, C. Episkopos, E. Karam, C. McCarthy, W. Moore-Kelly, N. Watson, V. Ahluwalia, J. Barnfield, O. Ben-Gal, I. Bloom, A. Gharatya, K. Khodatars, N. Merchant, A. Moonan, M. Moore, K. Patel, H. Spiers, K. Sundaram, J. Turner, M. F. Bath, J. Black, H. Chadwick, L. Huisman, H. Ingram, S. Khan, L. Martin, M. Metcalfe, P. Sangal, J. Seehra, A. Thatcher, S. Venturini, I. Whitcroft, Z. Afzal, S. Brown, A. Gani, A. Gomaa, N. Hussein, S. Y. Oh, N. Pazhaniappan, E. Sharkey, T. Sivagnanasithiyar, C. Williams, J. Yeung, L. Cruddas, S. Gurjar, A. Pau, R. Prakash, R. Randhawa, L. Chen, I. Eiben, M. Naylor, D. Osei-Bordom, R. Trenear, J. Bannard-Smith, N. Griffiths, B. Y. Patel, F. Saeed, H. Abdikadir, M. Bennett, R. Church, S. E. Clements, J. Court, A. Delvi, J. Hubert, B. Macdonald, F. Mansour, R. R. Patel, R. Perris, S. Small, A. Betts, N. Brown, A. Chong, C. Croitoru, A. Grey, P. Hickland, C. Ho, D. Hollington, L. McKie, A. R. Nelson, H. Stewart, P. Eiben, M. Nedham, I. Ali, T. Brown, S. Cumming, C. Hunt, C. Joyner, C. McAlinden, J. Roberts, D. Rogers, A. Thachettu, N. Tyson, R. Vaughan, N. Verma, T. Yasin, K. Andrew, N. Bhamra, S. Leong, R. Mistry, H. Noble, F. Rashed, N. R. Walker, L. Watson, M. Worsfold, E. Yarham, H. Abdikadir, A. Arshad, B. Barmayehvar, L. Cato, N. Chan-lam, V. Do, A. Leong, Z. Sheikh, T. Zheleniakova, J. Coppel, S. T. Hussain, R. Mahmood, R. Nourzaie, J. Prowle, S. Sheik-Ali, A. Thomas, A. Alagappan, R. Ashour, H. Bains, J. Diamond, J. Gordon, B. Ibrahim, M. Khalil, D. Mittapalli, Y. N. Neo, P. Patil, F. S. Peck, N. Reza, I. Swan, M. Whyte, S. Chaudhry, J. Hernon, H. Khawar, J. O’Brien, M. Pullinger, K. Rothnie, S. Ujjal, S. Bhatte, J. Curtis, S. Green, A. Mayer, G. Watkinson, K. Chapple, T. Hawthorne, M. Khaliq, L. Majkowski, T. A. M. Malik, K. Mclauchlan, B. Ng Wei En, T. O’Coenenor, S. Parton, S. D. Robinson, M. I. Saat, B. N. Shurovi, K. Varatharasasingam, A. E. Ward, K. Behranwala, M. Bertelli, J. Cohen, F. Duff, O. Fafemi, R. Gupta, M. Manimaran, J. Mayhew, D. Peprah, M. H. Y. Wong, N. Farmer, C. Houghton, N. Kandhari, K. Khan, D. Ladha, J. Mayes, F. McLennan, P. Panahi, H. Seehra, R. Agrawal, I. Ahmed, S. Ali, F. Birkinshaw, M. Choudhry, S. Gokani, S. Harrogate, S. Jamal, F. Nawrozzadeh, A. Swaray, A. Szczap, J. Warusavitarne, M. Abdalla, N. Asemota, R. Cullum, M. Hartley, C. Maxwell-Armstrong, C. Mulvenna, J. Phillips, A. Yule, L. Ahmed, K. D. Clement, N. Craig, E. Elseedawy, D. Gorman, L. Kane, J. Livie, V. Livie, E. Moss, A. Naasan, F. Ravi, P. Shields, Y. Zhu, M. Archer, H. Cobley, R. Dennis, C. Downes, B. Guevel, E. Lamptey, H. Murray, A. Radhakrishnan, S. Saravanabavan, M. Sardar, C. Shaw, V. Tilliridou, R. Wright, W. Ye, N. Alturki, R. Helliwell, E. Jones, D. Kelly, S. Lambotharan, K. Scott, R. Sivakumar, L. Victor, H. Boraluwe-Rallage, P. Froggatt, S. Haynes, Y. M. A. Hung, A. Keyte, L. Matthews, E. Evans, P. Haray, I. John, A. Mathivanan, L. Morgan, O. Oji, C. Okorocha, A. Rutherford, H. Spiers, N. Stageman, A. Tsui, R. Whitham, A. Amoah-Arko, E. Cecil, A. Dietrich, H. Fitzpatrick, C. Guy, J. Hair, J. Hilton, L. Jawad, E. McAleer, Z. Taylor, J. Yap, M. Akhbari, D. Debnath, T. Dhir, M. Elbuzidi, M. Elsaddig, S. Glace, H. Khawaja, R. Koshy, K. Lal, L. Lobo, A. McDermott, J. Meredith, M. A. Qamar, A. Vaidya, F. Acquaah, L. Barfi, N. Carter, D. Gnanappiragasam, C. Ji, F. Kaminski, S. Lawday, K. Mackay, S. K. Sulaiman, R. Webb, P. Ananthavarathan, F. Dalal, E. Farrar, R. Hashemi, M. Hossain, J. Jiang, M. Kiandee, J. Lex, L. Mason, J. H. Matthews, E. McGeorge, S. Modhwadia, T. Pinkney, A. Radotra, L. Rickard, L. Rodman, A. Sales, K. L. Tan, A. Bachi, D. S. Bajwa, J. Battle, L. R. Brown, A. Butler, A. Calciu, E. Davies, I. Gardner, T. Girdlestone, O. Ikogho, G. Keelan, P. O’Loughlin, J. Tam, J. Elias, M. Ngaage, J. Thompson, S. Bristow, E. Brock, H. Davis, M. Pantelidou, A. Sathiyakeerthy, K. Singh, A. Chaudhry, G. Dickson, P. Glen, K. Gregoriou, H. Hamid, A. Mclean, P. Mehtaji, G. Neophytou, S. Potts, D. R. Belgaid, J. Burke, J. Durno, N. Ghailan, M. Hanson, V. Henshaw, U. R. Nazir, I. Omar, B. J. Riley, J. Roberts, G. Smart, K. Van Winsen, A. Bhatti, M. Chan, M. D’Auria, S. Green, C. Keshvala, H. Li, C. Maxwell-Armstrong, M. Michaelidou, L. Simmonds, C. Smith, A. Wimalathasan, J. Abbas, C. Cairns, Y. R. Chin, A. Connelly, S. Moug, A. Nair, D. Svolkinas, P. Coe, D. Subar, H. Wang, V. Zaver, J. Brayley, P. Cookson, L. Cunningham, A. Gaukroger, M. Ho, A. Hough, J. King, D. O’Hagan, A. Widdison, R. Brown, B. Brown, A. Chavan, S. Francis, L. Hare, J. Lund, N. Malone, B. Mavi, A. McIlwaine, S. Rangarajan, N. Abuhussein, H. S. Campbell, J. Daniels, I. Fitzgerald, S. Mansfield, A. Pendrill, D. Robertson, Y. W. Smart, T. Teng, J. Yates, A. Belgaumkar, A. Katira, J. Kossoff, S. Kukran, C. Laing, B. Mathew, T. Mohamed, S. Myers, R. Novell, B. L. Phillips, M. Thomas, T. Turlejski, S. Turner, M. Varcada, L. Warren, W. Wynell-Mayow, R. Church, L. Linley-Adams, G. Osborn, M. Saunders, R. Spencer, M. Srikanthan, S. Tailor, A. Tullett, M. Ali, S. Al-Masri, G. Carr, O. Ebhogiaye, S. Heng, S. Manivannan, J. Manley, L. E. McMillan, C. Peat, B. Phillips, S. Thomas, H. Whewell, G. Williams, A. Bienias, E. A. Cope, G. R. Courquin, L. Day, C. Garner, A. Gimson, C. Harris, K. Markham, T. Moore, T. Nadin, C. Phillips, S. M. Subratty, K. Brown, J. Dada, M. Durbacz, T. Filipescu, E. Harrison, E. D. Kennedy, E. Khoo, D. Kremel, I. Lyell, S. Pronin, R. Tummon, C. Ventre, L. Walls, E. Wootton, A. Akhtar, E. Davies, D. El-Sawy, M. Farooq, M. Gaddah, H. Griffiths, I. Katsaiti, N. Khadem, K. Leong, I. Williams, C. S. Chean, D. Chudek, H. Desai, N. Ellerby, A. Hammad, S. Malla, B. Murphy, O. Oshin, P. Popova, S. Rana, T. Ward, T. E. F. Abbott, O. Akpenyi, F. Edozie, R. El Matary, W. English, S. Jeyabaladevan, C. Morgan, V. Naidu, K. Nicholls, S. Peroos, J. Prowle, S. Sansome, H. D. Torrance, D. Townsend, J. Brecher, H. Fung, Z. Kazmi, P. Outlaw, K. Pursnani, N. Ramanujam, A. Razaq, M. Sattar, S. Sukumar, T. S. E. Tan, K. Chohan, S. Dhuna, T. Haq, S. Kirby, J. Lacy-Colson, P. Logan, Q. Malik, J. McCann, Z. Mughal, S. Sadiq, I. Sharif, C. Shingles, A. Simon, S. Burnage, S. S. N. Chan, A. R. J. Craig, J. Duffield, A. Dutta, M. Eastwood, F. Iqbal, F. Mahmood, W. Mahmood, C. Patel, A. Qadeer, A. Robinson, A. Rotundo, A. Schade, R. D. Slade, M. De Freitas, H. Kinnersley, E. McDowell, S. Moens-Lecumberri, J. Ramsden, T. Rockall, L. Wiffen, S. Wright, C. Bruce, V. Francois, K. Hamdan, C. Limb, A. J. Lunt, L. Manley, M. Marks, C. F. E. Phillips, C. J. F. Agnew, C. J. Barr, N. Benons, S. J. Hart, D. Kandage, R. Krysztopik, P. Mahalingam, J. Mock, S. Rajendran, M. T. Stoddart, B. Clements, H. Gillespie, S. Lee, R. McDougall, C. Murray, R. O’Loane, S. Periketi, S. Tan, R. Amoah, R. Bhudia, B. Dudley, A. Gilbert, B. Griffiths, H. Khan, N. McKigney, B. Roberts, R. Samuel, A. Seelarbokus, A. Stubbing-Moore, G. Thompson, P. Williams, N. Ahmed, R. Akhtar, E. Chandler, I. Chappelow, H. Gil, T. Gower, A. Kale, G. Lingam, L. Rutler, C. Sellahewa, A. Sheikh, H. Stringer, R. Taylor, H. Aglan, M. R. Ashraf, S. Choo, E. Das, J. Epstein, R. Gentry, D. Mills, Y. Poolovadoo, N. Ward, K. Bull, A. Cole, J. Hack, S. Khawari, C. Lake, T. Mandishona, R. Perry, S. Sleight, S. Sultan, T. Thornton, S. Williams, T. Arif, A. Castle, P. Chauhan, R. Chesner, T. Eilon, S. Kamarajah, C. Kambasha, L. Lock, T. Loka, F. Mohammad, S. Motahariasl, L. Roper, S. S. Sadhra, A. Sheikh, T. Toma, Q. Wadood, J. Yip, E. Ainger, S. Busti, L. Cunliffe, T. Flamini, S. Gaffing, C. Moorcroft, M. Peter, L. Simpson, E. Stokes, G. Stott, J. Wilson, J. York, A. Yousaf, A. Borakati, M. Brown, A. Goaman, B. Hodgson, A. Ijeomah, U. Iroegbu, G. Kaur, C. Lowe, S. Mahmood, Z. Sattar, P. Sen, A. Szuman, N. Abbas, M. Al-Ausi, N. Anto, R. Bhome, L. Eccles, J. Elliott, E. J. Hughes, A. Jones, A. S. Karunatilleke, J. S. Knight, C. C. F. Manson, I. Mekhail, L. Michaels, T. M. Noton, E. Okenyi, T. Reeves, I. H. Yasin, D. A. Banfield, R. Harris, D. Lim, C. Mason-Apps, T. Roe, J. Sandhu, N. Shafiq, E. Stickler, J. P. Tam, L. M. Williams, P. Ainsworth, Y. Boualbanat, C. Doull, E. Egan, L. Evans, K. Hassanin, G. Ninkovic-Hall, W. Odunlami, M. Shergill, M. Traish, D. Cummings, S. Kershaw, J. Ong, F. Reid, H. Toellner, A. Alwandi, M. Amer, D. George, K. Haynes, K. Hughes, L. Peakall, Y. Premakumar, N. Punjabi, A. Ramwell, H. Sawkins, J. Ashwood, A. Baker, C. Baron, I. Bhide, E. Blake, C. De Cates, R. Esmail, H. Hosamuddin, J. Kapp, N. Nguru, M. Raja, F. Thomson, H. Ahmed, G. Aishwarya, R. Al-Huneidi, S. Ali, R. Aziz, D. Burke, B. Clarke, A. Kausar, D. Maskill, L. Mecia, L. Myers, A. C. D. Smith, G. Walker, N. Wroe, C. Donohoe, D. Gibbons, P. Jordan, C. Keogh, A. Kiely, P. Lalor, M. McCrohan, C. Powell, M. Power Foley, J. Reynolds, E. Silke, O. Thorpe, J. Tseun Han Kong, C. White, Q. Ali, J. Dalrymple, Y. Ge, H. Khan, R. S. Luo, H. Paine, B. Paraskeva, L. Parker, K. Pillai, J. Salciccioli, S. Selvadurai, V. Sonagara, L. R. Springford, L. Tan, S. Appleton, N. Leadholm, Y. Zhang, D. Ahern, M. Cotter, S. Cremen, T. Durrigan, V. Flack, N. Hrvacic, H. Jones, B. Jong, K. Keane, P. R. O’Connell, J. O’sullivan, G. Pek, S. Shirazi, C. Barker, A. Brown, W. Carr, Y. Chen, C. Guillotte, J. Harte, A. Kokayi, K. Lau, S. McFarlane, S. Morrison, J. Broad, N. Kenefick, D. Makanji, V. Printz, R. Saito, O. Thomas, H. Breen, S. Kirk, C. H. Kong, A. O’Kane, M. Eddama, A. Engledow, S. K. Freeman, A. Frost, C. Goh, G. Lee, R. Poonawala, A. Suri, P. Taribagil, H. Brown, S. Christie, S. Dean, R. Gravell, E. Haywood, F. Holt, E. Pilsworth, R. Rabiu, H. W. Roscoe, S. Shergill, A. Sriram, A. Sureshkumar, L. C. Tan, A. Tanna, A. Vakharia, S. Bhullar, S. Brannick, E. Dunne, M. Frere, M. Kerin, K. Muthu Kumar, T. Pratumsuwan, R. Quek, M. Salman, N. Van Den Berg, C. Wong, J. Ahluwalia, R. Bagga, C. M. Borg, C. Calabria, A. Draper, M. Farwana, H. Joyce, A. Khan, M. Mazza, G. Pankin, M. S. Sait, N. Sandhu, N. Virani, J. Wong, K. Woodhams, N. Croghan, S. Ghag, G. Hogg, O. Ismail, N. John, K. Nadeem, M. Naqi, S. M. Noe, A. Sharma, S. Tan, F. Begum, R. Best, A. Collishaw, J. Glasbey, D. Golding, B. Gwilym, P. Harrison, T. Jackman, N. Lewis, Y. L. Luk, T. Porter, S. Potluri, M. Stechman, S. Tate, B. Walford, F. Auld, A. Bleakley, S. Johnston, C. Jones, J. Khaw, S. Milne, S. O’Neill, K. K. R. Singh, R. Smith, A. Swan, N. Thorley, S. Yalamarthi, Z. D. Yin, A. Ali, V. Balian, R. Bana, K. Clark, C. Livesey, G. McLachlan, M. Mohammad, N. Pranesh, C. Richards, F. Ross, M. Sajid, M. Brooke, J. Francombe, J. Gresly, S. Hutchinson, K. Kerrigan, E. Matthews, S. Nur, L. Parsons, A. Sandhu, M. Vyas, F. White, A. Zulkifli, L. Zuzarte, A. Al-Mousawi, J. Arya, S. Azam, A. Azri Yahaya, K. Gill, R. Hallan, C. Hathaway, I. Leptidis, L. McDonagh, S. Mitrasinovic, N. Mushtaq, N. Pang, G. B. Peiris, S. Rinkoff, L. Chan, E. Christopher, M. M. H. Farhan-Alanie, A. Gonzalez-Ciscar, C. J. Graham, H. Lim, K. A. McLean, H. M. Paterson, A. Rogers, C. Roy, D. Rutherford, F. Smith, G. Zubikarai, R. Al-Khudairi, M. Bamford, M. Chang, J. Cheng, C. Hedley, R. Joseph, B. Mitchell, S. Perera, L. Rothwell, A. Siddiqui, J. Smith, K. Taylor, O. Wroe Wright, H. K. Baryan, G. Boyd, H. Conchie, L. Cox, J. Davies, S. Gardner, N. Hill, K. Krishna, F. Lakin, S. Scotcher, J. Alberts, M. Asad, J. Barraclough, A. Campbell, D. Marshall, W. Wakeford, P. Cronbach, F. D’Souza, E. Gammeri, J. Houlton, M. Hall, A. Kethees, R. Patel, M. Perera, J. Prowle, M. Shaid, E. Webb, S. Beattie, M. Chadwick, O. El-Taji, S. Haddad, M. Mann, M. Patel, K. Popat, L. Rimmer, H. Riyat, H. Smith, C. Anandarajah, M. Cipparrone, K. Desai, C. Gao, E. T. Goh, M. Howlader, N. Jeffreys, A. Karmarkar, G. Mathew, H. Mukhtar, E. Ozcan, A. Renukanthan, N. Sarens, C. Sinha, A. Woolley, R. Bogle, O. Komolafe, F. Loo, D. Waugh, R. Zeng, A. Crewe, J. Mathias, A. Mills, A. Owen, A. Prior, I. Saunders, A. Baker, L. Crilly, J. McKeon, H. K. Ubhi, A. Adeogun, R. Carr, C. Davison, S. Devalia, A. Hayat, R. B. Karsan, C. Osborne, K. Scott, C. Weegenaar, M. Wijeyaratne, F. Babatunde, E. Barnor-Ahiaku, G. Beattie, P. Chitsabesan, O. Dixon, N. Hall, N. Ilenkovan, T. Mackrell, N. Nithianandasivam, J. Orr, F. Palazzo, M. Saad, L. Sandland-Taylor, J. Sherlock, T. Ashdown, S. Chandler, T. Garsaa, J. Lloyd, S. Y. Loh, S. Ng, C. Perkins, A. Powell-Chandler, F. Smith, R. Underhill, N. Goergen, A. McKinley, C. Neary, N. Rafiq, A. Badran, N. Fearnhead, M. Leadon, M. Yin Lin Ting, K. Conlon, D. Ganesan, D. O’Connor, M. J. Arthur, Z. Panayi, S. Rehman, H. Awni, R. Rao, A. Robinson, J. Baxter, P. Loughlin, A. Ahmed, H. Barrow, M. T. Liviu, G. Harinath, S. Raveendran, S. Sait, A. Ali, M. Latter, S. Udalov, M. Bergstrom, H. Tabry, E. West, S. Dindyal, C. Gao, H. Patel, M. Bath, K. Bevan, M. Bica, X. M. Chan, J. Lee, S. O’Donnell, M. Ravindran, E. Blessing, J. H. De Sousa Magalhaes, P. Jain, B. Campbell, R. Evans, S. Poo, C. Sanghera, N. Standfield, D. Karponis, A. Mehdi, R. Patel, J. O’Callaghan, A. Kumar, M. Saat, S. Davidson, A. Hylands, E. McKie, R. Hughes, J. Latter, E. Leung, P. Dos Santos Jorge, J. Saramunda, S. Vig, P. Serebriakoff, J. Wayman, S. K. Yen, M. Coleman, S. Leong, I. Sajid, T. Tolppa, A. Fawole, D. Kandola, A. Khan, F. Babatunde, A. Harlinska, K. Sasapu, A. D. Durham-Hall, G. Fowler, M. Glithero, T. Stringfellow, A. Tulloch, A. Bagchi, A. Grant, O. Onibere, M. Bews-Hair, N. Rajaraman, T. Agarwal, S. Rabinowicz, A. Radford, E. Pedlar, A. Raja, H. Rshaidat, P. Y. A. Aw, E. MacKle, E. Y. L. Yap, R. Charnley, L. A. M. Lim, M. Naylor, B. Stainer, N. Alseed, R. Amarasinghe, R. Rajagopal, P. Horgan, S. Sohrabi, A. Wilkinson, N. Liew, J. Smallwood, N. Walker, E. Mutengesa, T. Rankin, K. Waite, E. Robertson-Waters, S. Stanger, C. Thorn, A. Botha, A. Fowler, T. Suri, P. Vickers, S. Denley, W. Johnston, L. Jiao, A. Pain, K. Vutipongsatorn, A. Kale, R. S. Karri, K. Waite, C. Johnson, J. Smith, C. Walsh, N. Dewan, J. Prowle, K. Theodoropoulou, P. Jain, T. Nisar, A. Ali, L. Chung, J. Thomas, M. Abbas, Souradip Mookerjee, J. Pitt, E. Budd, T. Fung, M. Li, D. MacAfee, N. Havers, A. Kelkar, M. Hanson, R. Ingleton, N. Sukirthan, A. Chang, I. Eiben, M. Qamar, H. Javanmard, N. Watson, D. Bahadori, I. Bloom, G. Pike, J. Black, M. Metcalfe, A. Radhakrishnan, J. Seehra, K. Almeida, H. Amin, R. Holdsworth, J. Yeung, S. Gurjar, R. Jones, M. Patel, A. Alam, H. Ali, J. BannardSmith, R. Khaw, A. Rais, R. Ahluwalia, E. Briggs, H. Gil, J. Clements, R. Cowden, L. McCarthy, S. Chan, S. F. Hussain, R. Hryniv, H. Noble, J. Olivier, J. Prowle, S. Sait, E. Elseedawy, A. Hassane, I. Ibrahim, T. Melaugh, A. Ali, L. Ashraf, S. Green, K. Chapple, E. Heywood, N. Ngonyamo, I. Nyamali, A. Patil, T. Bamford, O. Fafemi, C. Grieco, K. Khan, A. Martin, H. Seehra, A. Burke-Smith, N. Johnson, G. Samarth, K. Sun, J. Warusavitarne, S. Green, C. Maxwell-Armstrong, J. Sivaraj, A. Campbell, M. Elseedawy, E. Elseedawy, O. Kouli, S. Bradbury, R. Dennis, H. Walji, J. Hale, P. Haray, P. Eiben, A. Light, T. Singhal, N. Carter, F. Ewbank, C. Perrott, I. Chappelow, R. Hashemi, A. Lee, J. Matthews, T. Pinkney, M. Byrne, H. Eltyeb, P. O’Loughlin, C. Donaldson, O. Oke, K. Bisset, P. Glen, S. Norman, L. Tan, M. Ahmed, C. Maxwell-Armstrong, S. Rangarajan, J. Sivaraj, C. Hancock, S. Moug, S. Smith, G. Nowell, B. Rigney, A. Widdinson, C. Boereboom, J. Lund, W. Simpson, J. Wright, I. Fitzgerald, S. Mansfield, E. Shakweh, K. Whitehurst, Z. Lee, B. Pinnell, G. Williams, R. Broll, T. Drake, E. Harrison, C. McCann, T. Abbott, S. Mahdi, F. Nawab, J. Prowle, B. Butcher, P. D. Loganathan, L. A. Paterson, K. Pursnani, J. Atley, K. Hamdan, E. Mills, B. Clements, G. Donaldson, L. Eaton, R. Aftab, M. Gough, B. Griffiths, C. Ng, G. Nolan, J. Archer, V. Do, S. Sharma, J. Epstein, P. Sodde, B. J. Storey, H. Ahmad, N. Akram, T. Sami, F. Sheldon, H. Croft, L. Han, K. Lasithiotakis, J. Acharya, O. Adeleye, G. Kaur, N. Dabab, P. Kangesu, J. Knight, K. Srikathrikamanathan, H. Wilson, E. Dell, L. Ellis, K. McDonald, D. Sobhanpanah, K. Foster, J. Mogg, S. Subramonia, P. Hill, A. Rahem, F. Reid, R. Bachar, N. Greenough, L. Hlukha, A. Ramwell, S. Carlton-Carew, M. Murray, A. Raja, D. Burke, M. El-Haddad, L. B. Mecia, N. Patel, R. Bhatt, W. J. Koay, L. Y. H. Low, J. Reynolds, S. Abbott, H. Devan Nair, J. J. Lee, R. O’Connell, W. Carr, S. Davies, S. Unsworth, J. Ashcroft, D. Lazenby, D. Subar, S. Choi, S. Rinkoff, N. Sarens, M. Varcada, N. Ellerby, A. Hammad, N. McCartan, U. Muhammad, M. Howlader, E. Norman, P. Polly, S. Brown, T. Clark, N. Thakral, P. Hann, R. Henderson, S. Kirk, S. Gupta, T. Richards, J. Ting, M. Byrne, C. Byrne, J. Cheema, S. Walsh, C. Borg, J. Hardie, Y. Sardar, B. Hughes, S. Saeed, F. Saeed, A. Sharma, E. Ang, B. Kansu, M. Stechman, R. Walford, C. Woodward, S. Adeyemi, R. Awad, L. Imam, I. Leptidis, E. D. Kennedy, H. Patterson, Z. M. Soh, L. Walls, J. D. Yau, B. Ali, D. Evans, J. Smith, E. James, V. E. Kantola, K. Krishna, H. Naeem, J. Prowle, O. Komolafe, E. Tilling, C. Osborne, J. Schuster Bruce, C. Weegenaar, P. Chitsabesan, A. Goaman, C. Goode, N. Nithianandavisam

Comparison of different rating scales for the use in Delphi studies: different scales lead to different consensus and show different test-retest reliability

  • Open Access
  • Research article

Toni Lange, Christian Kopkow, Jörg Lützner, Klaus-Peter Günther, Sascha Gravius, Hanns-Peter Scharf, Johannes Stöve, Richard Wagner, Jochen Schmitt

Patient and Public Involvement (PPI) in evidence synthesis: how the PatMed study approached embedding audience responses into the expression of a meta-ethnography

  • Open Access
  • Technical advance

S. Park, N. Khan, F. Stevenson, A. Malpass

Outcome choice and definition in systematic reviews leads to few eligible studies included in meta-analyses: a case study

  • Open Access
  • Research article

Ian J. Saldanha, Kristina B. Lindsley, Sarah Money, Hannah J. Kimmel, Bryant T. Smith, Kay Dickersin

Comparison of retention in observational cohorts and nested simulated HIV vaccine efficacy trials in the key populations in Uganda

Andrew Abaasa, Jim Todd, Stephen Nash, Yunia Mayanja, Pontiano Kaleebu, Patricia E. Fast, Matt Price

The methods and baseline characteristics of a VA randomized controlled study evaluating supported employment provided in primary care patient aligned care teams

  • Open Access
  • Care
  • Research article

Lori L. Davis, Catherine M. Blansett, Mercy N. Mumba, David MacVicar, Richard Toscano, Patricia Pilkinton, Whitney Gay, Al Bartolucci

Mechanisms and pathways to impact in public health research: a preliminary analysis of research funded by the National Institute for Health Research (NIHR)

Harriet Boulding, Adam Kamenetzky, Ioana Ghiga, Becky Ioppolo, Facundo Herrera, Sarah Parks, Catriona Manville, Susan Guthrie, Saba Hinrichs-Krapels

Development and validation of algorithms to classify type 1 and 2 diabetes according to age at diagnosis using electronic health records

Calvin Ke, Thérèse A. Stukel, Andrea Luk, Baiju R. Shah, Prabhat Jha, Eric Lau, Ronald C. W. Ma, Wing-Yee So, Alice P. Kong, Elaine Chow, Juliana C. N. Chan

A simulation study to compare different estimation approaches for network meta-analysis and corresponding methods to evaluate the consistency assumption

  • Open Access
  • Research Article

Corinna Kiefer, Sibylle Sturtz, Ralf Bender

The application of unsupervised deep learning in predictive models using electronic health records

  • Open Access
  • Research article

Lei Wang, Liping Tong, Darcy Davis, Tim Arnold, Tina Esposito

A scoping review of core outcome sets and their ‘mapping’ onto real-world data using prostate cancer as a case study

Michela Meregaglia, Oriana Ciani, Helen Banks, Maximilian Salcher-Konrad, Caroline Carney, Sahan Jayawardana, Paula Williamson, Giovanni Fattore

The ability of different imputation methods for missing values in mental measurement questionnaires

  • Open Access
  • Research article

Xueying Xu, Leizhen Xia, Qimeng Zhang, Shaoning Wu, Mingcheng Wu, Hongbo Liu

Correction to: A comparison of methods to estimate the survivor average causal effect in the presence of missing data: a simulation study

Myra B. McGuinness, Jessica Kasza, Amalia Karahalios, Robyn H. Guymer, Robert P. Finger, Julie A. Simpson

Nurse effects on measurement error in household biosocial surveys

  • Open Access
  • Research article

Alexandru Cernat, Joseph W. Sakshaug

Contamination in complex healthcare trials: the falls in care homes (FinCH) study experience

  • Open Access
  • Care
  • Debate

K. Robinson, F. Allen, J. Darby, C. Fox, A. L. Gordon, J. C. Horne, P. Leighton, E. Sims, P. A. Logan

Comparison of exclusion, imputation and modelling of missing binary outcome data in frequentist network meta-analysis

  • Open Access
  • Research article

Loukia M. Spineli, Chrysostomos Kalyvas

Norm values and psychometric properties for the German health regulatory focus scale – results of a representative survey

  • Open Access
  • Research article

Bjarne Schmalbach, Markus Zenger, Elmar Brähler, Katja Petrowski

Power difference in a χ2 test vs generalized linear mixed model in the presence of missing data – a simulation study

  • Open Access
  • Research article

Mary L. Miller, Denise J. Roe, Chengcheng Hu, Melanie L. Bell

Questionnaire development for the Lolland-Falster Health Study, Denmark: an iterative and incremental process

  • Open Access
  • Commentary

Cecilie Lindström Egholm, Aake Packness, Jakob Stokholm, Knud Rasmussen, Christina Ellervik, Erik Simonsen, Anne Illemann Christensen, Randi Jepsen

Assembling and validating a heart failure-free cohort from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study

Parag Goyal, Matthew T. Mefford, Ligong Chen, Madeline R. Sterling, Raegan W. Durant, Monika M. Safford, Emily B. Levitan

Agreement of claims-based methods for identifying sepsis with clinical criteria in the REasons for Geographic and Racial Differences in Stroke (REGARDS) cohort

John P. Donnelly, Yuling Dai, Lisandro D. Colantonio, Hong Zhao, Monika M. Safford, John W. Baddley, Paul Muntner, Henry E. Wang

Identifying long-term psychological distress from single measures: evidence from a nationally representative longitudinal survey of the Australian population

  • Open Access
  • Research article

J. Welsh, R. J. Korda, E. Banks, L. Strazdins, G. Joshy, P. Butterworth

Individualizing the dosage of Methylphenidate in children with attention deficit hyperactivity disorder

Hoda Shirafkan, Javad Mahmoudi-Gharaei, Akbar Fotouhi, Seyyed Ali Mozaffarpur, Mehdi Yaseri, Mostafa Hoseini

Protocol registration improves reporting quality of systematic reviews in dentistry

  • Open Access
  • Research article

Mateus Bertolini Fernandes dos Santos, Bernardo Antônio Agostini, Rafaela Bassani, Gabriel Kalil Rocha Pereira, Rafael Sarkis-Onofre

A novel approach to conducting clinical trials in the community setting: utilizing patient-driven platforms and social media to drive web-based patient recruitment

  • Open Access
  • Research article

Janelle Applequist, Cristina Burroughs, Artemio Ramirez Jr, Peter A. Merkel, Marc E. Rothenberg, Bruce Trapnell, Robert J. Desnick, Mustafa Sahin, Jeffrey P. Krischer

Comparison of alternative approaches for difference, noninferiority, and equivalence testing of normal percentiles

  • Open Access
  • Research article

Gwowen Shieh

Research methodology used in the 50 most cited articles in the field of pediatrics: types of studies that become citation classics

Antonia Jelicic Kadic, Tanja Kovacevic, Edita Runjic, Ana Simicic Majce, Josko Markic, Branka Polic, Julije Mestrovic, Livia Puljak

Hidden analyses: a review of reporting practice and recommendations for more transparent reporting of initial data analyses

  • Open Access
  • Research article

Marianne Huebner, Werner Vach, Saskia le Cessie, Carsten Oliver Schmidt, Lara Lusa, Dianne Cook, Marianne Huebner, Saskia le Cessie, Lara Lusa, Carsten Oliver Schmidt, Werner Vach

Incorporating sampling weights into robust estimation of Cox proportional hazards regression model, with illustration in the Multi-Ethnic Study of Atherosclerosis

Colleen M. Sitlani, Thomas Lumley, Barbara McKnight, Kenneth M. Rice, Nels C. Olson, Margaret F. Doyle, Sally A. Huber, Russell P. Tracy, Bruce M. Psaty, Joseph A. C. Delaney

Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France

  • Open Access
  • Research article

Cécile Vuillermoz, Lise Eilin Stene, Lydéric Aubert, Yvon Motreff, Philippe Pirard, Thierry Baubet, Sophie Lesieur, Pierre Chauvin, Stéphanie Vandentorren

Evaluation of confounding in epidemiologic studies assessing alcohol consumption on the risk of ischemic heart disease

  • Open Access
  • Research article

Joshua D. Wallach, Stylianos Serghiou, Lingzhi Chu, Alexander C. Egilman, Vasilis Vasiliou, Joseph S. Ross, John P. A. Ioannidis

Analytical methods used in estimating the prevalence of HIV/AIDS from demographic and cross-sectional surveys with missing data: a systematic review

Neema R. Mosha, Omololu S. Aluko, Jim Todd, Rhoderick Machekano, Taryn Young

A framework for extending trial design to facilitate missing data sensitivity analyses

Alexina J. Mason, Richard D. Grieve, Alvin Richards-Belle, Paul R. Mouncey, David A. Harrison, James R. Carpenter

Factors associated with patient willingness to participate in anaesthesia clinical trials: a vignette-based cross-sectional study

Caroline Noirmain, Béatrice Gil-Wey, Isabelle Pichon, Pauline Brindel, Guy Haller

Non-communicable diseases research output in the Eastern Mediterranean region: an overview of systematic reviews

  • Open Access
  • Research article

Alaa Akkawi, Joanne Khabsa, Aya Noubani, Sarah Jamali, Abla M. Sibai, Tamara Lotfi

Assessing the effect of genetic markers on drug immunogenicity from a mechanistic model-based approach

  • Open Access
  • Research Article

Julianne Duhazé, Miguel Caubet, Signe Hässler, Delphine Bachelet, Matthieu Allez, Florian Deisenhammer, Anna Fogdell-Hahn, Aude Gleizes, Salima Hacein-Bey-Abina, Xavier Mariette, Marc Pallardy, Philippe Broët

An evaluation of inverse probability weighting using the propensity score for baseline covariate adjustment in smaller population randomised controlled trials with a continuous outcome

Hanaya Raad, Victoria Cornelius, Susan Chan, Elizabeth Williamson, Suzie Cro

On estimating the time to statistical cure

  • Open Access
  • Research Article

Lasse H. Jakobsen, Therese M.-L. Andersson, Jorne L. Biccler, Laurids Ø. Poulsen, Marianne T. Severinsen, Tarec C. El-Galaly, Martin Bøgsted

Multiple imputation by predictive mean matching in cluster-randomized trials

  • Open Access
  • Research Article

Brittney E. Bailey, Rebecca Andridge, Abigail B. Shoben

A factorial cluster-randomised controlled trial combining home-environmental and early child development interventions to improve child health and development: rationale, trial design and baseline findings

Stella M. Hartinger, Nestor Nuño, Jan Hattendorf, Hector Verastegui, Walter Karlen, Mariela Ortiz, Daniel Mäusezahl

Using estimated probability of pre-diagnosis behavior as a predictor of cancer survival time: an example in esophageal cancer

Paul P. Fahey, Andrew Page, Glenn Stone, Thomas Astell-Burt

Validation of an algorithm based on administrative data to detect new onset of atrial fibrillation after cardiac surgery

Jonathan Bourgon Labelle, Paul Farand, Christian Vincelette, Myriam Dumont, Mathilde Le Blanc, Christian M. Rochefort

When piloting health services interventions, what predicts real world behaviours? A systematic concept mapping review

  • Open Access
  • Research article

Tavis Hayes, Natasha Hudek, Ian D. Graham, Doug Coyle, Jamie C. Brehaut

Prevalence estimation by joint use of big data and health survey: a demonstration study using electronic health records in New York city

Ryung S. Kim, Viswanathan Shankar

Telephone versus web panel National Survey for monitoring adoption of preventive behaviors to climate change in populations: a case study of Lyme disease in Québec, Canada

  • Open Access
  • Tick
  • Research article

Grâce Ngambo Domche, Pierre Valois, Magalie Canuel, Denis Talbot, Maxime Tessier, Cécile Aenishaenslin, Catherine Bouchard, Sandie Briand

Assessing the quality of health research from an Indigenous perspective: the Aboriginal and Torres Strait Islander quality appraisal tool

  • Open Access
  • Research article

Stephen Harfield, Odette Pearson, Kim Morey, Elaine Kite, Karla Canuto, Karen Glover, Judith Streak Gomersall, Drew Carter, Carol Davy, Edoardo Aromataris, Annette Braunack-Mayer

Agreement between the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW) interview and a paper-administered adaption

Marion Burckhardt, Steffen Fleischer, Almuth Berg

Methodological challenges of analysing COVID-19 data during the pandemic

Martin Wolkewitz, Livia Puljak

Correction to: Estimation of treatment preference effects in clinical trials when some participants are indifferent to treatment choice

  • Open Access
  • Correction

Stephen D. Walter, Robin M. Turner, Petra Macaskill, Kirsten J. McCaffery, Les Irwig

Clustering of continuous and binary outcomes at the general practice level in individually randomised studies in primary care - a review of 10 years of primary care trials

  • Open Access
  • Care
  • Research article

Beth Stuart, Taeko Becque, Michael Moore, Paul Little

Modelling seizure rates rather than time to an event within clinical trials of antiepileptic drugs

Laura J. Bonnett, Jane L. Hutton, Anthony G. Marson

Data sources and methods used to determine pretest probabilities in a cohort of Cochrane diagnostic test accuracy reviews

  • Open Access
  • Research article

Michiel S. Oerbekke, Kevin Jenniskens, Rob J. P. M. Scholten, Lotty Hooft

Assessing repeatability and reproducibility of Anterior Active Rhinomanometry (AAR) in children

Giovanna Cilluffo, Anna Maria Zicari, Giuliana Ferrante, Velia Malizia, Salvatore Fasola, Marzia Duse, Giovanna De Castro, Valentina De Vittori, Laura Schiavi, Giulia Brindisi, Paolo Petrelli, Stefania La Grutta

RETRACTED ARTICLE: Psychometric properties of a short version of the Job Anxiety Scale

Bjarne Schmalbach, Andreas Kalkbrenner, Markus Bassler, Andreas Hinz, Katja Petrowski

Analysis of Bayesian posterior significance and effect size indices for the two-sample t-test to support reproducible medical research

  • Open Access
  • Research Article

Riko Kelter

Validity and reliability of State-Trait Anxiety Inventory in Danish women aged 45 years and older with abnormal cervical screening results

L. W. Gustafson, P. Gabel, A. Hammer, H. H. Lauridsen, L. K. Petersen, B. Andersen, P. Bor, M. B. Larsen

What was visualized? A method for describing content of performance summary displays in feedback interventions

  • Open Access
  • Research article

Dahee Lee, Veena Panicker, Colin Gross, Jessica Zhang, Zach Landis-Lewis

schema: an open-source, distributed mobile platform for deploying mHealth research tools and interventions

  • Open Access
  • Software

Adrian B. R. Shatte, Samantha J. Teague

Engaging with Indigenous Australian communities for a human papilloma virus and oropharyngeal cancer project; use of the CONSIDER statement

Joanne Hedges, Gail Garvey, Zell Dodd, Warren Miller, Terry Dunbar, Cathy Leane, Amanda Mitchell, Isaac Hill, Lisa Jamieson

Study design factors influencing patients’ willingness to participate in clinical research: a randomised vignette-based study

  • Open Access
  • Research article

Angèle Gayet-Ageron, Sandrine Rudaz, Thomas Perneger

Bayesian joint modelling of longitudinal and time to event data: a methodological review

  • Open Access
  • Research article

Maha Alsefri, Maria Sudell, Marta García-Fiñana, Ruwanthi Kolamunnage-Dona

Ordinal logistic regression model describing factors associated with extent of nodal involvement in oral cancer patients and its prospective validation

Vishwajeet Singh, Sada Nand Dwivedi, S. V. S. Deo

How are systematic reviews of prevalence conducted? A methodological study

  • Open Access
  • Research article

Celina Borges Migliavaca, Cinara Stein, Verônica Colpani, Timothy Hugh Barker, Zachary Munn, Maicon Falavigna

Implications of sex offender classification on reporting demographic characteristics, health, and criminal careers: results from an Australian jurisdiction

  • Open Access
  • Research article

Mathew Gullotta, David Greenberg, Armita Adily, Jesse Cale, Tony G. Butler

Accurate confidence intervals for risk difference in meta-analysis with rare events

  • Open Access
  • Research Article

Tao Jiang, Baixin Cao, Guogen Shan

Application of principal component analysis and logistic regression model in lupus nephritis patients with clinical hypothyroidism

Ting Huang, Jiarong Li, Weiru Zhang

Adjusting for comorbidity in incidence-based DALY calculations: an individual-based modeling approach

Scott A. McDonald, Juanita A. Haagsma, Alessandro Cassini, Brecht Devleesschauwer

Framing the numerical findings of Cochrane plain language summaries: two randomized controlled trials

  • Open Access
  • Research article

Ivan Buljan, Ružica Tokalić, Marija Roguljić, Irena Zakarija-Grković, Davorka Vrdoljak, Petra Milić, Livia Puljak, Ana Marušić

Feasibility and evaluation of a large-scale external validation approach for patient-level prediction in an international data network: validation of models predicting stroke in female patients newly diagnosed with atrial fibrillation

Jenna M. Reps, Ross D. Williams, Seng Chan You, Thomas Falconer, Evan Minty, Alison Callahan, Patrick B. Ryan, Rae Woong Park, Hong-Seok Lim, Peter Rijnbeek

Evaluation of survival extrapolation in immuno-oncology using multiple pre-planned data cuts: learnings to aid in model selection

  • Open Access
  • Research article

Ash Bullement, Anna Willis, Amerah Amin, Michael Schlichting, Anthony James Hatswell, Murtuza Bharmal

Baseline-adjusted proportional odds models for the quantification of treatment effects in trials with ordinal sum score outcomes

Muriel Buri, Armin Curt, John Steeves, Torsten Hothorn

An assessment of the quality of current clinical meta-analyses

  • Open Access
  • Research article

Irbaz Hameed, Michelle Demetres, Derrick Y. Tam, Mohamed Rahouma, Faiza M. Khan, Drew N. Wright, Keith Mages, Antonio P. DeRosa, Becky Baltich Nelson, Kevin Pain, Diana Delgado, Leonard N. Girardi, Stephen E. Fremes, Mario Gaudino

Psychometric properties of measures of substance use: a systematic review and meta-analysis of reliability, validity and diagnostic test accuracy

  • Open Access
  • Research article

Glenn-Milo Santos, Steffanie A. Strathdee, Nabila El-Bassel, Poonam Patel, Divya Subramanian, Danielle Horyniak, Ryan R. Cook, Charlotte McCullagh, Phillip Marotta, Foram Choksi, Brian Kang, Isabel Allen, Steven Shoptaw

Association between antipsychotic drug dose and length of clinical notes: a proxy of disease severity?

Freja Karuna Hemmingsen Sørup, Søren Brunak, Robert Eriksson

Generation and evaluation of synthetic patient data

  • Open Access
  • Research Article

Andre Goncalves, Priyadip Ray, Braden Soper, Jennifer Stevens, Linda Coyle, Ana Paula Sales

Which interactions matter in economic evaluations? A systematic review and simulation study

  • Open Access
  • Research article

Helen Dakin, Alastair Gray

Experts’ perceptions on the use of visual analytics for complex mental healthcare planning: an exploratory study

  • Open Access
  • Research article

Erin I. Walsh, Younjin Chung, Nicolas Cherbuin, Luis Salvador-Carulla

Using alcohol consumption diary data from an internet intervention for outcome and predictive modeling: a validation and machine learning study

  • Open Access
  • Research article

Philip Lindner, Magnus Johansson, Mikael Gajecki, Anne H. Berman

A mixed methods case study investigating how randomised controlled trials (RCTs) are reported, understood and interpreted in practice

Ben E. Byrne, Leila Rooshenas, Helen S. Lambert, Jane M. Blazeby

Obtaining and managing data sets for individual participant data meta-analysis: scoping review and practical guide

  • Open Access
  • Research article

Matthew Ventresca, Holger J. Schünemann, Fergus Macbeth, Mike Clarke, Lehana Thabane, Gareth Griffiths, Simon Noble, David Garcia, Maura Marcucci, Alfonso Iorio, Qi Zhou, Mark Crowther, Elie A. Akl, Gary H. Lyman, Viktoria Gloy, Marcello DiNisio, Matthias Briel

Improving assent in health research: a rapid systematic review

  • Open Access
  • Research article

Dominik Soll, Maria Magdalena Guraiib, Nigel Campbell Rollins, Andreas Alois Reis

Current methods for development of rapid reviews about diagnostic tests: an international survey

  • Open Access
  • Research article

Ingrid Arevalo-Rodriguez, Karen R. Steingart, Andrea C. Tricco, Barbara Nussbaumer-Streit, David Kaunelis, Pablo Alonso-Coello, Susan Baxter, Patrick M. Bossuyt, José Ignacio Emparanza, Javier Zamora

Social media as a recruitment platform for a nationwide online survey of COVID-19 knowledge, beliefs, and practices in the United States: methodology and feasibility analysis

Shahmir H. Ali, Joshua Foreman, Ariadna Capasso, Abbey M. Jones, Yesim Tozan, Ralph J. DiClemente

Application of the matched nested case-control design to the secondary analysis of trial data

  • Open Access
  • Research article

Christopher Partlett, Nigel J. Hall, Alison Leaf, Edmund Juszczak, Louise Linsell

Similar responses to EQ-5D-3L by two elicitation methods: visual analogue scale and time trade-off

  • Open Access
  • Research article

Xiuying Wang, Lin Zhuo, Yifei Ma, Ting Cai, Aviva Must, Ling Xu, Lang Zhuo

Developing model biobanking consent language: what matters to prospective participants?

  • Open Access
  • Research article

Laura M. Beskow, Catherine M. Hammack-Aviran, Kathleen M. Brelsford

Patient information, communication and competence empowerment in oncology (PIKKO) – evaluation of a supportive care intervention for overall oncological patients. Study protocol of a non-randomized controlled trial

  • Open Access
  • Care
  • Study protocol

Nico Schneider, Anna Bäcker, Katja Brenk-Franz, Christian Keinki, Jutta Hübner, Florian Brandt, Geraldine von der Winkel, Lutz Hager, Bernhard Strauss, Uwe Altmann

Methodological tools and sensitivity analysis for assessing quality or risk of bias used in systematic reviews published in the high-impact anesthesiology journals

  • Open Access
  • Research article

Marija Franka Marušić, Mahir Fidahić, Cristina Mihaela Cepeha, Loredana Gabriela Farcaș, Alexandra Tseke, Livia Puljak

What feedback do reviewers give when reviewing qualitative manuscripts? A focused mapping review and synthesis

  • Open Access
  • Research article

Oliver Rudolf HERBER, Caroline BRADBURY-JONES, Susanna BÖLING, Sarah COMBES, Julian HIRT, Yvonne KOOP, Ragnhild NYHAGEN, Jessica D. VELDHUIZEN, Julie TAYLOR

A randomized trial of mail and email recruitment strategies for a physician survey on clinical trial accrual

  • Open Access
  • Research article

Caitlin C. Murphy, Simon J. Craddock Lee, Ann M. Geiger, John V. Cox, Chul Ahn, Rasmi Nair, David E. Gerber, Ethan A. Halm, Katharine McCallister, Celette Sugg Skinner

Frequently repeated measurements -our experience of collecting data with SMS

  • Open Access
  • Research article

I. Axén, I. Jensen, E. Butler Forslund, B. Grahn, V. Jørgensen, C. H. Opava, L. Bodin

Fuzzy cognitive mapping and soft models of indigenous knowledge on maternal health in Guerrero, Mexico

  • Open Access
  • Research article

Ivan Sarmiento, Sergio Paredes-Solís, David Loutfi, Anna Dion, Anne Cockcroft, Neil Andersson

Optimal, minimax and admissible two-stage design for phase II oncology clinical trials

  • Open Access
  • Research article

Fei Qin, Jingwei Wu, Feng Chen, Yongyue Wei, Yang Zhao, Zhiwei Jiang, Jianling Bai, Hao Yu

Re-engaging an inactive cohort of young adults: evaluating recruitment for the Kidskin Young Adult Myopia Study

  • Open Access
  • Myopia
  • Research article

Gareth Lingham, David A. Mackey, Nicola Seed, Lisa Ryan, Elizabeth Milne, Robyn M. Lucas, Maria Franchina, Samantha Sze-Yee Lee, Seyhan Yazar

Use of partitioned GMM marginal regression model with time-dependent covariates: analysis of Chinese Longitudinal Healthy Longevity Study

Elsa Vazquez-Arreola, Dan Xue, Jeffrey R. Wilson

Primary outcome reporting in adolescent depression clinical trials needs standardization

  • Open Access
  • Research article

Andrea Monsour, Emma J. Mew, Sagar Patel, Alyssandra Chee-a-tow, Leena Saeed, Lucia Santos, Darren B. Courtney, Priya N. Watson, Suneeta Monga, Peter Szatmari, Martin Offringa, Nancy J. Butcher

Translation method is validity evidence for construct equivalence: analysis of secondary data routinely collected during translations of the Health Literacy Questionnaire (HLQ)

  • Open Access
  • Research article

Melanie Hawkins, Christina Cheng, Gerald R. Elsworth, Richard H. Osborne

Application of the critical incident technique in refining a realist initial programme theory

  • Open Access
  • Research article

U. Cunningham, A. De Brún, E. McAuliffe

A review of the use of propensity score diagnostics in papers published in high-ranking medical journals

  • Open Access
  • Research article

Emily Granger, Tim Watkins, Jamie C. Sergeant, Mark Lunt

A typology of useful evidence: approaches to increase the practical value of intervention research

  • Open Access
  • Debate

Henna Hasson, Laura Leviton, Ulrica von Thiele Schwarz

How are missing data in covariates handled in observational time-to-event studies in oncology? A systematic review

  • Open Access
  • Research Article

Orlagh U. Carroll, Tim P. Morris, Ruth H. Keogh

Summarizing the extent of visit irregularity in longitudinal data

  • Open Access
  • Research article

Armend Lokku, Lily S. Lim, Catherine S. Birken, Eleanor M. Pullenayegum

Comparison of four algorithms on establishing continuous reference intervals for pediatric analytes with age-dependent trend

  • Open Access
  • Research article

Kun Li, Lixin Hu, Yaguang Peng, Ruohua Yan, Qiliang Li, Xiaoxia Peng, Wenqi Song, Xin Ni

Publication and related biases in health services research: a systematic review of empirical evidence

  • Open Access
  • Research article

Abimbola A. Ayorinde, Iestyn Williams, Russell Mannion, Fujian Song, Magdalena Skrybant, Richard J. Lilford, Yen-Fu Chen

Database combinations to retrieve systematic reviews in overviews of reviews: a methodological study

  • Open Access
  • Research article

Käthe Goossen, Simone Hess, Carole Lunny, Dawid Pieper

The semi-automation of title and abstract screening: a retrospective exploration of ways to leverage Abstrackr’s relevance predictions in systematic and rapid reviews

  • Open Access
  • Research article

Allison Gates, Michelle Gates, Meghan Sebastianski, Samantha Guitard, Sarah A. Elliott, Lisa Hartling

How feasible is it to abandon statistical significance? A reflection based on a short survey

  • Open Access
  • Research article

Fredi Alexander Diaz-Quijano, Fernando Morelli Calixto, José Mário Nunes da Silva

No one accelerometer-based physical activity data collection protocol can fit all research questions

  • Open Access
  • Research article

Patrick Bergman, Maria Hagströmer

Bayesian alternatives to null hypothesis significance testing in biomedical research: a non-technical introduction to Bayesian inference with JASP

  • Open Access
  • Software

Riko Kelter

Compbdt: an R program to compare two binary diagnostic tests subject to a paired design

  • Open Access
  • Software

J. A. Roldán-Nofuentes

The ‘goodness-of-fit’ of fit models: creating a multidimensional survey for person-organisation and person-group fit in health care

  • Open Access
  • Research article

J. Herkes, L. A. Ellis, K. Churruca, J. Braithwaite

Robust estimation of the effect of an exposure on the change in a continuous outcome

  • Open Access
  • Research article

Yilin Ning, Nathalie C. Støer, Peh Joo Ho, Shih Ling Kao, Kee Yuan Ngiam, Eric Yin Hao Khoo, Soo Chin Lee, E-Shyong Tai, Mikael Hartman, Marie Reilly, Chuen Seng Tan

Towards reduction in bias in epidemic curves due to outcome misclassification through Bayesian analysis of time-series of laboratory test results: case study of COVID-19 in Alberta, Canada and Philadelphia, USA

Igor Burstyn, Neal D. Goldstein, Paul Gustafson

Advanced stratification analyses in molecular association meta-analysis: methodology and application

  • Open Access
  • Technical advance

Shuhuang Lin, Yukun Ma, Zunnan Huang

Missing-data analysis: socio- demographic, clinical and lifestyle determinants of low response rate on self- reported psychological and nutrition related multi- item instruments in the context of the ATTICA epidemiological study

Thomas Tsiampalis, Demosthenes B. Panagiotakos

Who responds? An examination of response rates to a national postal survey of Aboriginal and Torres Strait Islander adults, 2018-2019

  • Open Access
  • Research article

Alyson Wright, Katherine Ann Thurber, Mandy Yap, Wei Du, Emily Banks, Jennie Walker, Faye Irwin, Will Sanders, Raymond Lovett

Do we need to adjust for interim analyses in a Bayesian adaptive trial design?

  • Open Access
  • Research article

Elizabeth G. Ryan, Kristian Brock, Simon Gates, Daniel Slade

Challenges of recruiting emergency department patients to a qualitative study: a thematic analysis of researchers’ experiences

  • Open Access
  • Research article

Delyth Price, Michelle Edwards, Andrew Carson-Stevens, Alison Cooper, Freya Davies, Bridie Evans, Peter Hibbert, Thomas Hughes, Tim Rainer, Niro Siriwardena, Adrian Edwards

Laplace approximation, penalized quasi-likelihood, and adaptive Gauss–Hermite quadrature for generalized linear mixed models: towards meta-analysis of binary outcome with sparse data

  • Open Access
  • Research article

Ke Ju, Lifeng Lin, Haitao Chu, Liang-Liang Cheng, Chang Xu

Developing strategies to improve fidelity of delivery of, and engagement with, a complex intervention to improve independence in dementia: a mixed methods study

Holly Walton, Aimee Spector, Anna Roberts, Morgan Williamson, Jem Bhatt, Ildiko Tombor, Susan Michie

Using multiple agreement methods for continuous repeated measures data: a tutorial for practitioners

Richard A. Parker, Charles Scott, Vanda Inácio, Nathaniel T. Stevens

A novel framework for classification of selection processes in epidemiological research

  • Open Access
  • Research article

Jonas Björk, Anton Nilsson, Carl Bonander, Ulf Strömberg

Improving design choices in Delphi studies in medicine: the case of an exemplary physician multi-round panel study with 100% response

  • Open Access
  • Research article

Rebekka Veugelers, Menno I. Gaakeer, Peter Patka, Robbert Huijsman

Including ‘seldom heard’ views in research: opportunities, challenges and recommendations from focus groups with British South Asian people with type 2 diabetes

Suman Prinjha, Nasima Miah, Ebrahim Ali, Andrew Farmer

Development of an integrative coding framework for evaluating context within implementation science

  • Open Access
  • Research article

L. Rogers, A. De Brún, E. McAuliffe

Using online technologies to improve diversity and inclusion in cognitive interviews with young people

  • Open Access
  • Technical advance

Ushma D. Upadhyay, Heather Lipkovich

An exploration of how developers use qualitative evidence: content analysis and critical appraisal of guidelines

  • Open Access
  • Research article

Yun-Yun Wang, Dan-Dan Liang, Cui Lu, Yue-Xian Shi, Jing Zhang, Yue Cao, Cheng Fang, Di Huang, Ying-Hui Jin

Research methodology and characteristics of journal articles with original data, preprint articles and registered clinical trial protocols about COVID-19

Mahir Fidahic, Danijela Nujic, Renata Runjic, Marta Civljak, Filipa Markotic, Zvjezdana Lovric Makaric, Livia Puljak

Practicalities in running early-phase trials using the time-to-event continual reassessment method (TiTE-CRM) for interventions with long toxicity periods using two radiotherapy oncology trials as examples

Erik van Werkhoven, Samantha Hinsley, Eleni Frangou, Jane Holmes, Rosemarie de Haan, Maria Hawkins, Sarah Brown, Sharon B Love

Increasing questionnaire response: evidence from a nested RCT within a longitudinal birth cohort study

  • Open Access
  • Research article

Michaela Goodwin, Tanya Walsh, William Whittaker, Richard Emsley, Matt Sutton, Martin Tickle, Michael P. Kelly, Iain A. Pretty

The challenges in data integration – heterogeneity and complexity in clinical trials and patient registries of Systemic Lupus Erythematosus

Helen Le Sueur, Ian N. Bruce, Nophar Geifman

Including non-concurrent control patients in the analysis of platform trials: is it worth it?

  • Open Access
  • Research article

Kim May Lee, James Wason

Explaining the variation in the attained power of a stepped-wedge trial with unequal cluster sizes

  • Open Access
  • Research article

Yongdong Ouyang, Mohammad Ehsanul Karim, Paul Gustafson, Thalia S. Field, Hubert Wong

P-values – a chronic conundrum

Jian Gao

Comparison of methods for handling covariate missingness in propensity score estimation with a binary exposure

  • Open Access
  • Research article

Donna L. Coffman, Jiangxiu Zhou, Xizhen Cai

Applying an intersectionality lens to the theoretical domains framework: a tool for thinking about how intersecting social identities and structures of power influence behaviour

  • Open Access
  • Research article

Cole Etherington, Isabel Braganca Rodrigues, Lora Giangregorio, Ian D. Graham, Alison M. Hoens, Danielle Kasperavicius, Christine Kelly, Julia E. Moore, Matteo Ponzano, Justin Presseau, Kathryn M. Sibley, Sharon Straus

Modeling observations with a detection limit using a truncated normal distribution with censoring

  • Open Access
  • Research article

Justin R. Williams, Hyung-Woo Kim, Catherine M. Crespi

Don’t dismiss logistic regression: the case for sensible extraction of interactions in the era of machine learning

Joshua J. Levy, A. James O’Malley

A conceptual framework for prognostic research

Peter Kent, Carol Cancelliere, Eleanor Boyle, J. David Cassidy, Alice Kongsted

How methodological frameworks are being developed: evidence from a scoping review

  • Open Access
  • Research article

Nicola McMeekin, Olivia Wu, Evi Germeni, Andrew Briggs

Effectiveness of SMS messaging for diarrhoea measurement: a factorial cross-over randomised controlled trial

Ryan Rego, Samuel Watson, Philbert Ishengoma, Philemon Langat, Hezekiah Pireh Otieno, Richard Lilford

A comparison of residual diagnosis tools for diagnosing regression models for count data

Cindy Feng, Longhai Li, Alireza Sadeghpour

Group testing performance evaluation for SARS-CoV-2 massive scale screening and testing

Ozkan Ufuk Nalbantoglu

Coronavirus disease 2019 (COVID-19): an evidence map of medical literature

Nan Liu, Marcel Lucas Chee, Chenglin Niu, Pin Pin Pek, Fahad Javaid Siddiqui, John Pastor Ansah, David Bruce Matchar, Sean Shao Wei Lam, Hairil Rizal Abdullah, Angelique Chan, Rahul Malhotra, Nicholas Graves, Mariko Siyue Koh, Sungwon Yoon, Andrew Fu Wah Ho, Daniel Shu Wei Ting, Jenny Guek Hong Low, Marcus Eng Hock Ong

Sources of potential bias when combining routine data linkage and a national survey of secondary school-aged children: a record linkage study

  • Open Access
  • Research article

Kelly Morgan, Nicholas Page, Rachel Brown, Sara Long, Gillian Hewitt, Marcos Del Pozo-Banos, Ann John, Simon Murphy, Graham Moore

Directed acyclic graphs and causal thinking in clinical risk prediction modeling

Marco Piccininni, Stefan Konigorski, Jessica L. Rohmann, Tobias Kurth

Agreement between original and Rasch-approved neck disability index

Ze Lu, Joy C. MacDermid, Goris Nazari

The value of social practice theory for implementation science: learning from a theory-based mixed methods process evaluation of a randomised controlled trial

Julia Frost, Jennifer Wingham, Nicky Britten, Colin Greaves, Charles Abraham, Fiona C. Warren, Hasnain Dalal, Rod S. Taylor

Quasi-linear Cox proportional hazards model with cross- L1 penalty

  • Open Access
  • Research article

Katsuhiro Omae, Shinto Eguchi

Recruiting a representative sample of urban South Australian Aboriginal adults for a survey on alcohol consumption

  • Open Access
  • Research article

KS Kylie Lee, Michelle S. Fitts, James H. Conigrave, Catherine Zheng, Jimmy Perry, Scott Wilson, Dudley Ah Chee, Shane Bond, Keith Weetra, Tanya N. Chikritzhs, Tim Slade, Katherine M. Conigrave

Multivariate network meta-analysis incorporating class effects

Rhiannon K. Owen, Sylwia Bujkiewicz, Douglas G. Tincello, Keith R. Abrams

Multiple imputation with missing indicators as proxies for unmeasured variables: simulation study

  • Open Access
  • Research article

Matthew Sperrin, Glen P. Martin

Correction to: Baseline-adjusted proportional odds models for the quantification of treatment effects in trials with ordinal sum score outcomes

  • Open Access
  • Correction

Muriel Buri, Armin Curt, John Steeves, Torsten Hothorn

Participants who were difficult to recruit at baseline are less likely to complete a follow-up questionnaire – results from the German National Cohort

  • Open Access
  • Research article

Stefan Rach, Kathrin Günther, Birte Hadeler

Cross-cultural validation and psychometrics’ evaluation of women’s experience of maternity care scale in French: the ESEM

  • Open Access
  • Care
  • Research article

L. Floris, C. de Labrusse

Quality of evidence in a post-Soviet country: evaluation of methodological quality of controlled clinical trials published in national journals from Uzbekistan

Timur Aripov, Dilfuza Aniyozova, Irina Gorbunova

The statistical importance of a study for a network meta-analysis estimate

  • Open Access
  • Research article

Gerta Rücker, Adriani Nikolakopoulou, Theodoros Papakonstantinou, Georgia Salanti, Richard D. Riley, Guido Schwarzer

Modeling adaptive response profiles in a vaccine clinical trial

  • Open Access
  • Research article

Dicle Hasdemir, Robert A. van den Berg, Antoine van Kampen, Age K. Smilde

WHO Trial Registration Data Set (TRDS) extension for traditional Chinese medicine 2020: recommendations, explanation, and elaboration

Xuan Zhang, Liang Lan, Jacky C. P. Chan, Linda L. D. Zhong, Chung-Wah Cheng, Wai-Ching Lam, Ran Tian, Chen Zhao, Tai-Xiang Wu, Hong-Cai Shang, Ai-Ping Lyu, Zhao-Xiang Bian

A graphical approach to assess the goodness-of-fit of random-effects linear models when the goal is to measure individual benefits of medical treatments in severely ill patients

Zhiwen Wang, Francisco J. Diaz

Comparison of hierarchical EMAX and NDLM models in dose-response for early phase clinical trials

  • Open Access
  • Research article

Xiaqing Huang, Byron J. Gajewski

A novel method for controlling unobserved confounding using double confounders

  • Open Access
  • Technical advance

Lu Liu, Lei Hou, Yuanyuan Yu, Xinhui Liu, Xiaoru Sun, Fan Yang, Qing Wang, Ming Jing, Yeping Xu, Hongkai Li, Fuzhong Xue

COVID-19 prevalence estimation by random sampling in population - optimal sample pooling under varying assumptions about true prevalence

Ola Brynildsrud

The use of restricted mean time lost under competing risks data

  • Open Access
  • Research article

Jingjing Lyu, Yawen Hou, Zheng Chen

Linkage of the CHHiP randomised controlled trial with primary care data: a study investigating ways of supplementing cancer trials and improving evidence-based practice

  • Open Access
  • Care
  • Research article

Agnieszka Lemanska, Rachel C. Byford, Clare Cruickshank, David P. Dearnaley, Filipa Ferreira, Clare Griffin, Emma Hall, William Hinton, Simon de Lusignan, Julian Sherlock, Sara Faithfull

Accuracy of random-forest-based imputation of missing data in the presence of non-normality, non-linearity, and interaction

Shangzhi Hong, Henry S. Lynn

Using the Cochrane Central Register of Controlled Trials to identify clinical trial registration is insufficient: a cross-sectional study

  • Open Access
  • Research article

Masahiro Banno, Yasushi Tsujimoto, Yuki Kataoka

The influence of social media on recruitment to surgical trials

  • Open Access
  • Research article

Carly Nichola Bisset, Ben Carter, Jennifer Law, Jonathan Hewitt, Kat Parmar, Susan Joan Moug, Bryony Ross, Julia Oleksiewicz, Nicola Fearnhead, Christopher Jump, Jemma Boyle, Alex Shaw, Jonathan Barker, Jane Hughes, Jonathan Randall, Isileli Tonga, James Kynaston, Matthew Boal, Nicola Eardley, Elizabeth Kane, Harriet Reader, Sunanda Roy Mahapatra, Michael Garner-Jones, Jessica Juliana Tan, Said Mohamed, Rina George, Ed Whiteman, Kamran Malik, Christopher J. Smart, Monica Bogdan, Madhu Parna Chaudhury, Videha Sharma, Daren Subar, Panna Patel, Sok-Moi Chok, Evelyn Lim, Vedamurthy Adhiyaman, Glesni Davies, Ellen Ross, Rudra Maitra, Colin W. Steele, Campbell Roxburgh, Shelly Griffiths, Natalie S. Blencowe, Emily N. Kirkham, John S. Abraham, Kirsty Griffiths, Yasser Abdulaal, Muhammad Rafaih Iqbal, Munir Tarazi, James Hill, Azam Khan, Ian Farrell, Gemma Conn, Jugal Patel, Hyder Reddy, Janahan Sarveswaran, Lakshmanan Arunachalam, Afaq Malik, Luca Ponchietti, Krystian Pawelec, Yan Mei Goh, Parveen Vitish-Sharma, Ahmed Saad, Edward Smyth, Amy Crees, Louise Merker, Nahida Bashir, Gethin Williams, Jennifer Hayes, Kelly Walters, Rhiannon Harries, Rahulpreet Singh, Nikola A. Henderson, Francesco M. Polignano, Ben Knight, Louise Alder, Alexandra Kenchington, Yan Li Goh, Ilaria Dicurzio, Ewen Griffiths, Ahmed Alani, Katrina Knight, Patrick MacGoey, Guat Shi Ng, Naomi Mackenzie, Ishaan Maitra, Susan Moug, Kelly Ong, Daniel McGrath, Emanuele Gammeri, Guillame Lafaurie, Gemma Faulkner, Gabriele Di Benedetto, Julia McGovern, Bharathi Subramanian, Sunil Kumar Narang, Jennifer Nowers, Neil J. Smart, Ian R. Daniels, Massimo Varcada, Tanzeela Gala, Julie Cornish, Zoe Barber, Stephen O’Neill, Richard McGregor, Andrew G. Robertson, Simon Paterson-Brown, Thomas Raymond, Mohamed A. Thaha, William J. English, Cillian T. Forde, Heidi Paine, Alpa Morawala, Ravindra Date, Patrick Casey, Thomas Bolton, Xuan Gleaves, Joshua Fasuyi, Sanja Durakovic, Matt Dunstan, Sophie Allen, Angela Riga, Jonathan Epstein, Lyndsay Pearce, Emily Gaines, Anthony Howe, Halima Choonara, Ffion Dewi, Joanne Bennett, Emile King, Kathryn McCarthy, Greg Taylor, Dean Harris, Hari Nageswaran, Amy Stimpson, Kamran Siddiqui, Lay In Lim, Christopher Ray, Laura Smith, Gillian McColl, Mohammed Rahman, Aaron Kler, Abhi Sharma, Kat Parmar, Neil Patel, Perry Crofts, Claudio Baldari, Rhys Thomas, Michael Stechman, Roland Aldridge, James O’Kelly, Graeme Wilson, Nicholas Gallegos, Ramya Kalaiselvan, Rajasundaram Rajaganeshan, Aliya Mackenzie, Prashant Naik, Kaushiki Singh, Harinath Gandraspulli, Jeremy Wilson, Kate Hancorn, Amir Khawaja, Felix Nicholas, Thomas Marks, Cameron Abbott, Susan Chandler

Informing retention in longitudinal cohort studies through a social marketing lens: Raine Study Generation 2 participants’ perspectives on benefits and barriers to participation

  • Open Access
  • Research article

Leesa Costello, Julie Dare, Manon Dontje, Leon Straker

Measuring psychological safety in healthcare teams: developing an observational measure to complement survey methods

  • Open Access
  • Research article

Róisín O’Donovan, Desirée Van Dun, Eilish McAuliffe

Doubly robust estimator of risk in the presence of censoring dependent on time-varying covariates: application to a primary prevention trial for coronary events with pravastatin

Takuya Kawahara, Tomohiro Shinozaki, Yutaka Matsuyama

Factors affecting adolescents’ participation in randomized controlled trials evaluating the effectiveness of healthcare interventions: the case of the STEPSTONES project

  • Open Access
  • Care
  • Research article

Markus Saarijärvi, Lars Wallin, Philip Moons, Hanna Gyllensten, Ewa-Lena Bratt

Joint analysis of duration of ventilation, length of intensive care, and mortality of COVID-19 patients: a multistate approach

Derek Hazard, Klaus Kaier, Maja von Cube, Marlon Grodd, Lars Bugiera, Jerome Lambert, Martin Wolkewitz

Evaluation of approaches for multiple imputation of three-level data

  • Open Access
  • Research article

Rushani Wijesuriya, Margarita Moreno-Betancur, John B. Carlin, Katherine J. Lee

A four-step strategy for handling missing outcome data in randomised trials affected by a pandemic

Suzie Cro, Tim P. Morris, Brennan C. Kahan, Victoria R. Cornelius, James R. Carpenter

Disease progression of cancer patients during COVID-19 pandemic: a comprehensive analytical strategy by time-dependent modelling

Atanu Bhattacharjee, Gajendra K. Vishwakarma, Souvik Banerjee, Sharvari Shukla

Comparison of up-front cash cards and checks as incentives for participation in a clinician survey: a study within a trial

  • Open Access
  • Research article

Lydia E. Pace, Yeonsoo S. Lee, Nadine Tung, Jada G. Hamilton, Camila Gabriel, Sahitya C. Raja, Colby Jenkins, Anthony Braswell, Susan M. Domchek, Heather Symecko, Kelsey Spielman, Beth Y. Karlan, Jenny Lester, Daniella Kamara, Jeffrey Levin, Kelly Morgan, Kenneth Offit, Judy Garber, Nancy L. Keating

Two-stage Bayesian hierarchical modeling for blinded and unblinded safety monitoring in randomized clinical trials

  • Open Access
  • Research article

Junhao Liu, Jo Wick, Renee’ H. Martin, Caitlyn Meinzer, Dooti Roy, Byron Gajewski

International severe asthma registry (ISAR): protocol for a global registry

J. Mark FitzGerald, Trung N. Tran, Marianna Alacqua, Alan Altraja, Vibeke Backer, Leif Bjermer, Unnur Bjornsdottir, Arnaud Bourdin, Guy Brusselle, Lakmini Bulathsinhala, John Busby, Giorgio W. Canonica, Victoria Carter, Isha Chaudhry, You Sook Cho, George Christoff, Borja G. Cosio, Richard W. Costello, Neva Eleangovan, Peter G. Gibson, Liam G. Heaney, Enrico Heffler, Mark Hew, Naeimeh Hosseini, Takashi Iwanaga, David J. Jackson, Rupert Jones, Mariko S. Koh, Thao Le, Lauri Lehtimäki, Dora Ludviksdottir, Anke H. Maitland-van der Zee, Andrew Menzies-Gow, Ruth B. Murray, Nikolaos G. Papadopoulos, Luis Perez-de-Llano, Matthew Peters, Paul E. Pfeffer, Todor A. Popov, Celeste M. Porsbjerg, Chris A. Price, Chin K. Rhee, Mohsen Sadatsafavi, Yuji Tohda, Eileen Wang, Michael E. Wechsler, James Zangrilli, David B. Price

Protocol registration issues of systematic review and meta-analysis studies: a survey of global researchers

  • Open Access
  • Research article

Gehad Mohamed Tawfik, Hoang Thi Nam Giang, Sherief Ghozy, Ahmed M. Altibi, Hend Kandil, Huu-Hoai Le, Peter Samuel Eid, Ibrahim Radwan, Omar Mohamed Makram, Tong Thi Thu Hien, Mahmoud Sherif, As-Saba Hossain, Tai Luu Lam Thang, Livia Puljak, Hosni Salem, Tarek Numair, Kazuhiko Moji, Nguyen Tien Huy

Measuring clinical uncertainty and equipoise by applying the agreement study methodology to patient management decisions

Robert Fahed, Tim E. Darsaut, Behzad Farzin, Miguel Chagnon, Jean Raymond

Rapid establishment of a COVID-19 perinatal biorepository: early lessons from the first 100 women enrolled

Lydia L. Shook, Jessica E. Shui, Adeline A. Boatin, Samantha Devane, Natalie Croul, Lael M. Yonker, Juan D. Matute, Rosiane S. Lima, Muriel Schwinn, Dana Cvrk, Laurel Gardner, Robin Azevedo, Suzanne Stanton, Evan A. Bordt, Laura J. Yockey, Alessio Fasano, Jonathan Z. Li, Xu G. Yu, Anjali J. Kaimal, Paul H. Lerou, Andrea G. Edlow

A specific method for qualitative medical research: the IPSE (Inductive Process to analyze the Structure of lived Experience) approach

Jordan Sibeoni, Laurence Verneuil, Emilie Manolios, Anne Révah-Levy

Searching for Programme theories for a realist evaluation: a case study comparing an academic database search and a simple Google search

  • Open Access
  • Research article

Susanne Coleman, Judy M. Wright, Jane Nixon, Lisette Schoonhoven, Maureen Twiddy, Joanne Greenhalgh

Dynamic RMST curves for survival analysis in clinical trials

  • Open Access
  • Technical advance

Jason J. Z. Liao, G. Frank Liu, Wen-Chi Wu

Inference about time-dependent prognostic accuracy measures in the presence of competing risks

  • Open Access
  • Technical advance

Rajib Dey, Giada Sebastiani, Paramita Saha-Chaudhuri

Statistical design of Phase II/III clinical trials for testing therapeutic interventions in COVID-19 patients

Shesh N. Rai, Chen Qian, Jianmin Pan, Anand Seth, Deo Kumar Srivastava, Aruni Bhatnagar

Group penalized generalized estimating equation for correlated event-related potentials and biomarker selection

Ye Lin, Jianhui Zhou, Swapna Kumar, Wanze Xie, Sarah K. G. Jensen, Rashidul Haque, Charles A. Nelson, William A. Petri Jr, Jennie Z. Ma

A new randomization procedure based on multiple covariates and applicable to parallel studies with simultaneous enrollment of all subjects prior to intervention

  • Open Access
  • Technical advance

Eric D. Schoen, Suzan Wopereis

Handling informative dropout in longitudinal analysis of health-related quality of life: application of three approaches to data from the esophageal cancer clinical trial PRODIGE 5/ACCORD 17

B. Cuer, C. Mollevi, A. Anota, E. Charton, B. Juzyna, T. Conroy, C. Touraine

Ensuring protocol compliance and data transparency in clinical trials using Blockchain smart contracts

  • Open Access
  • Technical advance

Ilhaam A. Omar, Raja Jayaraman, Khaled Salah, Mecit Can Emre Simsekler, Ibrar Yaqoob, Samer Ellahham

Suitability of administrative claims databases for bariatric surgery research – is the glass half-full or half-empty?

  • Open Access
  • Obesity
  • Research article

Xiaojuan Li, Kristina H. Lewis, Katherine Callaway, J. Frank Wharam, Sengwee Toh

A tutorial on methodological studies: the what, when, how and why

  • Open Access
  • Commentary

Lawrence Mbuagbaw, Daeria O. Lawson, Livia Puljak, David B. Allison, Lehana Thabane

Correction to: Two-stage Bayesian hierarchical modeling for blinded and unblinded safety monitoring in randomized clinical trials

  • Open Access
  • Correction

Junhao Liu, Jo Wick, Renee’ H. Martin, Caitlyn Meinzer, Dooti Roy, Byron Gajewski

Establishment of a pediatric COVID-19 biorepository: unique considerations and opportunities for studying the impact of the COVID-19 pandemic on children

Rosiane Lima, Elizabeth F. Gootkind, Denis De la Flor, Laura J. Yockey, Evan A. Bordt, Paolo D’Avino, Shen Ning, Katerina Heath, Katherine Harding, Jaclyn Zois, Grace Park, Margot Hardcastle, Kathleen A. Grinke, Sheila Grimmel, Susan P. Davidson, Pamela J. Forde, Kathryn E. Hall, Anne M. Neilan, Juan D. Matute, Paul H. Lerou, Alessio Fasano, Jessica E. Shui, Andrea G. Edlow, Lael M. Yonker

The effects of different lookback periods on the sociodemographic structure of the study population and on the estimation of incidence rates: analyses with German claims data

Jelena Epping, Siegfried Geyer, Juliane Tetzlaff

Evaluation of the reporting quality of observational studies in master of public health dissertations in China

Shuangyang Dai, Xiaobin Zhou, Hong Xu, Beibei Li, Jingao Zhang

Recruitment of adolescents with suicidal ideation in the emergency department: lessons from a randomized controlled pilot trial of a youth suicide prevention intervention

  • Open Access
  • Suicide
  • Research article

Matthew Tracey, Yaron Finkelstein, Reva Schachter, Kristin Cleverley, Suneeta Monga, Melanie Barwick, Peter Szatmari, Myla E. Moretti, Andrew Willan, Joanna Henderson, Daphne J. Korczak

Modeling socio-demographic and clinical factors influencing psychiatric inpatient service use: a comparison of models for zero-Inflated and overdispersed count data

  • Open Access
  • Research article

Sharmin Sharker, Lloyd Balbuena, Gene Marcoux, Cindy Xin Feng

Social network analysis methods for exploring SARS-CoV-2 contact tracing data

Karikalan Nagarajan, Malaisamy Muniyandi, Bharathidasan Palani, Senthil Sellappan

Estimating the number of usability problems affecting medical devices: modelling the discovery matrix

  • Open Access
  • Technical advance

Vincent Vandewalle, Alexandre Caron, Coralie Delettrez, Renaud Périchon, Sylvia Pelayo, Alain Duhamel, Benoit Dervaux

COVID19-world: a shiny application to perform comprehensive country-specific data visualization for SARS-CoV-2 epidemic

Cristian Tebé, Joan Valls, Pau Satorra, Aurelio Tobías

Semiparametric estimation of the attributable fraction when there are interactions under monotonicity constraints

Wei Wang, Dylan S. Small, Michael O. Harhay

Assessing risk of bias: a proposal for a unified framework for observational studies and randomized trials

  • Open Access
  • Technical advance

Hendrika J. Luijendijk, Matthew J. Page, Huibert Burger, Xander Koolman

Integrating trials into a whole-population cohort of children and parents: statement of intent (trials) for the Generation Victoria (GenV) cohort

  • Open Access
  • Technical advance

Melissa Wake, Yanhong Jessika Hu, Hayley Warren, Margie Danchin, Michael Fahey, Francesca Orsini, Maurizio Pacilli, Kirsten P. Perrett, Richard Saffery, Andrew Davidson

Contrasting cumulative risk and multiple individual risk models of the relationship between Adverse Childhood Experiences (ACEs) and adult health outcomes

  • Open Access
  • Research article

Marianna D. LaNoue, Brandon J. George, Deborah L. Helitzer, Scott W. Keith

Adequacy of risk of bias assessment in surgical vs non-surgical trials in Cochrane reviews: a methodological study

  • Open Access
  • Research article

Ognjen Barcot, Matija Boric, Svjetlana Dosenovic, Marija Cavar, Antonia Jelicic Kadic, Tina Poklepovic Pericic, Ivana Vukicevic, Ivana Vuka, Livia Puljak

Performance of unanchored matching-adjusted indirect comparison (MAIC) for the evidence synthesis of single-arm trials with time-to-event outcomes

  • Open Access
  • Research article

Yawen Jiang, Weiyi Ni

Advancing methodology for scoping reviews: recommendations arising from a scoping literature review (SLR) to inform transformation of Children and Adolescent Mental Health Services

  • Open Access
  • Research article

Joanna K. Anderson, Emma Howarth, Maris Vainre, Ayla Humphrey, Peter B. Jones, Tamsin J. Ford

SARFIMA model prediction for infectious diseases: application to hemorrhagic fever with renal syndrome and comparing with SARIMA

  • Open Access
  • Research article

Chang Qi, Dandan Zhang, Yuchen Zhu, Lili Liu, Chunyu Li, Zhiqiang Wang, Xiujun Li

Semantic and cognitive tools to aid statistical science: replace confidence and significance by compatibility and surprise

  • Open Access
  • Technical advance

Zad Rafi, Sander Greenland

When complexity matters: a step-by-step guide to incorporating a complexity perspective in guideline development for public health and health system interventions

A. Movsisyan, E. Rehfuess, S. L. Norris

Impact of investigator initiated trials and industry sponsored trials on medical practice (IMPACT): rationale and study design

  • Open Access
  • Research article

E. Nury, K. Bischoff, K. Wollmann, K. Nitschke, S. Lohner, M. Schumacher, G. Rücker, A. Blümle

Identifying the fundamental structures and processes of care contributing to emergency general surgery quality using a mixed-methods Donabedian approach

Heena P. Santry, Scott A. Strassels, Angela M. Ingraham, Wendelyn M. Oslock, Kevin B. Ricci, Anghela Z. Paredes, Victor K. Heh, Holly E. Baselice, Amy P. Rushing, Adrian Diaz, Vijaya T. Daniel, M. Didem Ayturk, Catarina I. Kiefe

Alternative graphical displays for the monitoring of epidemic outbreaks, with application to COVID-19 mortality

  • Open Access
  • COVID-19
  • Technical advance

Thomas Perneger, Antoine Kevorkian, Thierry Grenet, Hubert Gallée, Angèle Gayet-Ageron

Recruiting men from across the socioeconomic spectrum via GP registers and community outreach to a weight management feasibility randomised controlled trial

  • Open Access
  • Obesity
  • Research article

Matthew D. McDonald, Stephan U. Dombrowski, Rebecca Skinner, Eileen Calveley, Paula Carroll, Andrew Elders, Cindy M. Gray, Mark Grindle, Fiona M. Harris, Claire Jones, Pat Hoddinott, Alison Avenell, Frank Kee, Michelle McKinley, Martin Tod, Marjon van der Pol

A Bayesian natural cubic B-spline varying coefficient method for non-ignorable dropout

Camille M. Moore, Samantha MaWhinney, Nichole E. Carlson, Sarah Kreidler

An evaluation of whether propensity score adjustment can remove the self-selection bias inherent to web panel surveys addressing sensitive health behaviours

  • Open Access
  • Research article

Andrew Copas, Sarah Burkill, Fred Conrad, Mick P. Couper, Bob Erens

Going web or staying paper? The use of web-surveys among older people

  • Open Access
  • Research article

Susanne Kelfve, Marie Kivi, Boo Johansson, Magnus Lindwall

Optimal designs for phase II/III drug development programs including methods for discounting of phase II results

  • Open Access
  • Research article

Stella Erdmann, Marietta Kirchner, Heiko Götte, Meinhard Kieser

Confirmatory factor analysis of the Evidence-Based Practice Attitude Scale (EBPAS) in a large and representative Swedish sample: is the use of the total scale and subscale scores justified?

  • Open Access
  • Research article

Anna Helena Elisabeth Santesson, Martin Bäckström, Robert Holmberg, Sean Perrin, Håkan Jarbin

Comparing two methods for deriving dietary patterns associated with risk of metabolic syndrome among middle-aged and elderly Taiwanese adults with impaired kidney function

Adi Lukas Kurniawan, Chien-Yeh Hsu, Hsiu-An Lee, Hsiao-Hsien Rau, Rathi Paramastri, Ahmad Syauqy, Jane C.-J. Chao

An evaluation of DistillerSR’s machine learning-based prioritization tool for title/abstract screening – impact on reviewer-relevant outcomes

C. Hamel, S. E. Kelly, K. Thavorn, D. B. Rice, G. A. Wells, B. Hutton

An R package for an integrated evaluation of statistical approaches to cancer incidence projection

  • Open Access
  • Research article

Maximilian Knoll, Jennifer Furkel, Jürgen Debus, Amir Abdollahi, André Karch, Christian Stock

Extracting medication information from unstructured public health data: a demonstration on data from population-based and tertiary-based samples

  • Open Access
  • Fatigue
  • Research article

Robert Chen, Joyce C. Ho, Jin-Mann S. Lin

Development, testing and use of data extraction forms in systematic reviews: a review of methodological guidance

  • Open Access
  • Research article

Roland Brian Büchter, Alina Weise, Dawid Pieper

Identifying competing interest disclosures in systematic reviews of surgical interventions and devices: a cross-sectional survey

  • Open Access
  • Research article

Jiajie Yu, Guanyue Su, Allison Hirst, Zhengyue Yang, You Zhang, Youping Li

Bayesian splines versus fractional polynomials in network meta-analysis

  • Open Access
  • Research article

Andreas Heinecke, Marta Tallarita, Maria De Iorio

Machine learning techniques for mortality prediction in critical traumatic patients: anatomic and physiologic variables from the RETRAUCI study

Luis Serviá, Neus Montserrat, Mariona Badia, Juan Antonio Llompart-Pou, Jesús Abelardo Barea-Mendoza, Mario Chico-Fernández, Marcelino Sánchez-Casado, José Manuel Jiménez, Dolores María Mayor, Javier Trujillano

Estimation in meta-analyses of response ratios

  • Open Access
  • Research article

Ilyas Bakbergenuly, David C. Hoaglin, Elena Kulinskaya

Predictive approaches to heterogeneous treatment effects: a scoping review

  • Open Access
  • Research article

Alexandros Rekkas, Jessica K. Paulus, Gowri Raman, John B. Wong, Ewout W. Steyerberg, Peter R. Rijnbeek, David M. Kent, David van Klaveren

Correction to: Alternative graphical displays for the monitoring of epidemic outbreaks, with application to COVID-19 mortality

Thomas Perneger, Antoine Kevorkian, Thierry Grenet, Hubert Gallée, Angèle Gayet-Ageron

Spie charts for quantifying treatment effectiveness and safety in multiple outcome network meta-analysis: a proof-of-concept study

  • Open Access
  • Technical advance

Caitlin H. Daly, Lawrence Mbuagbaw, Lehana Thabane, Sharon E. Straus, Jemila S. Hamid

Accuracy of reporting of Aboriginality on administrative health data collections using linked data in NSW, Australia

  • Open Access
  • Research article

Michael A. Nelson, Kim Lim, Jason Boyd, Damien Cordery, Allan Went, David Meharg, Lisa Jackson-Pulver, Scott Winch, Lee K. Taylor

Correcting inaccurate background mortality in excess hazard models through breakpoints

  • Open Access
  • Technical advance

Robert Darlin Mba, Juste Aristide Goungounga, Nathalie Grafféo, Roch Giorgi

A non-linear optimisation method to extract summary statistics from Kaplan-Meier survival plots using the published P value

  • Open Access
  • Technical advance

Andrew F. Irvine, Sara Waise, Edward W. Green, Beth Stuart

Pharmacist and patient perspectives on recruitment strategies for randomized controlled trials: a qualitative analysis

  • Open Access
  • Research article

Jane M. Fletcher, Terry Saunders-Smith, Braden J. Manns, Ross Tsuyuki, Brenda R. Hemmelgarn, Marcello Tonelli, David J. T. Campbell

A structured collaborative approach to intervention design using a modified intervention mapping approach: a case study using the Management and Interventions for Asthma (MIA) project for South Asian children

Monica Lakhanpaul, Lorraine Culley, Noelle Robertson, Emma C. Alexander, Deborah Bird, Nicky Hudson, Narynder Johal, Melanie McFeeters, Charlotte Hamlyn-Williams, Logan Manikam, Yebeen Ysabelle Boo, Maya Lakhanpaul, Mark R. D. Johnson

Recruitment and retention of participants from socioeconomically deprived communities: lessons from the Awareness and Beliefs About Cancer (ABACus3) Randomised Controlled Trial

  • Open Access
  • Research article

Vasiliki Kolovou, Yvonne Moriarty, Stephanie Gilbert, Harriet Quinn-Scoggins, Julia Townson, Louise Padgett, Sioned Owen, Peter Buckle, Adrian Edwards, Julie Hepburn, Mandy Lau, Maura Matthews, Caroline Mitchell, Richard Neal, Rebecca Playle, Mike Robling, Stephanie Smits, Rob Trubey, Fiona Wood, Kate Brain

Interdisciplinary development of a standardized introduction to gene drives for lay audiences

Cynthia E. Schairer, Cynthia Triplett, Anna Buchman, Omar S. Akbari, Cinnamon S. Bloss

Optimality criteria for futility stopping boundaries for group sequential designs with a continuous endpoint

Xieran Li, Carolin Herrmann, Geraldine Rauch

Comparing multiple statistical software for multiple-indicator, multiple-cause modeling: an application of gender disparity in adult cognitive functioning using MIDUS II dataset

  • Open Access
  • Research article

Chi Chang, Joseph Gardiner, Richard Houang, Yan-Liang Yu

Variance constraints strongly influenced model performance in growth mixture modeling: a simulation and empirical study

  • Open Access
  • Research article

Jitske J. Sijbrandij, Tialda Hoekstra, Josué Almansa, Margot Peeters, Ute Bültmann, Sijmen A. Reijneveld

Survival prediction models since liver transplantation - comparisons between Cox models and machine learning techniques

Georgios Kantidakis, Hein Putter, Carlo Lancia, Jacob de Boer, Andries E. Braat, Marta Fiocco

Predictive accuracy of a hierarchical logistic model of cumulative SARS-CoV-2 case growth until May 2020

Levente Kriston

The hunt for efficient, incomplete designs for stepped wedge trials with continuous recruitment and continuous outcome measures

  • Open Access
  • Research article

Richard Hooper, Jessica Kasza, Andrew Forbes

Correction to: Optimality criteria for futility stopping boundaries for group sequential designs with a continuous endpoint

  • Open Access
  • Correction

Xieran Li, Carolin Herrmann, Geraldine Rauch

Common sampling and modeling approaches to analyzing readmission risk that ignore clustering produce misleading results

Huaqing Zhao, Samuel Tanner, Sherita H. Golden, Susan G. Fisher, Daniel J. Rubin

Combining the theory of change and realist evaluation approaches to elicit an initial program theory of the MomConnect program in South Africa

  • Open Access
  • Research article

Eveline M Kabongo, Ferdinand C. Mukumbang, Peter Delobelle, Edward Nicol

Patient-specific record linkage between emergency department and hospital admission data for a cohort of people who inject drugs: methodological considerations for frequent presenters

  • Open Access
  • Research article

Rehana Di Rico, Dhanya Nambiar, Belinda Gabbe, Mark Stoové, Paul Dietze

Using Trial Sequential Analysis for estimating the sample sizes of further trials: example using smoking cessation intervention

  • Open Access
  • Research article

Ravinder Claire, Christian Gluud, Ivan Berlin, Tim Coleman, Jo Leonardi-Bee

Retraction Note: Psychometric properties of a short version of the Job Anxiety Scale

  • Open Access
  • Anxiety
  • Retraction Note

Bjarne Schmalbach, Andreas Kalkbrenner, Markus Bassler, Andreas Hinz, Katja Petrowski

Epistemonikos: a comprehensive database of systematic reviews for health decision-making

  • Open Access
  • Database

Gabriel Rada, Daniel Pérez, Felipe Araya-Quintanilla, Camila Ávila, Gonzalo Bravo-Soto, Rocío Bravo-Jeria, Aldo Cánepa, Daniel Capurro, Victoria Castro-Gutiérrez, Valeria Contreras, Javiera Edwards, Jorge Faúndez, Damián Garrido, Magdalena Jiménez, Valentina Llovet, Diego Lobos, Francisco Madrid, Macarena Morel-Marambio, Antonia Mendoza, Ignacio Neumann, Luis Ortiz-Muñoz, José Peña, Marcelo Pérez, Franco Pesce, Carmen Rain, Solange Rivera, Javiera Sepúlveda, Mauricio Soto, Felipe Valverde, Juan Vásquez, Francisca Verdugo-Paiva, Camilo Vergara, Cynthia Zavala, Ricardo Zilleruelo-Ramos

Improving the use of focus group discussions in low income settings

  • Open Access
  • Research article

Pauline F. D. Scheelbeek, Yashua A. Hamza, Joanna Schellenberg, Zelee Hill

Statistical methods for the analysis of adverse event data in randomised controlled trials: a scoping review and taxonomy

  • Open Access
  • Research article

Rachel Phillips, Odile Sauzet, Victoria Cornelius

An assessment of the potential miscalibration of cardiovascular disease risk predictions caused by a secular trend in cardiovascular disease in England

  • Open Access
  • Research article

Alexander Pate, Tjeerd van Staa, Richard Emsley

Patient involvement to inform the design of a clinical trial in postbariatric hypoglycaemia

Matthias Hepprich, Marc Y. Donath, Lars G. Hemkens

Diversity in substance use behaviour among street children of Delhi under Bayesian paradigm

  • Open Access
  • Research article

Vivek Verma, Ashwani Kumar Mishra, Anju Dhawan, Dilip C. Nath

Time series prediction of under-five mortality rates for Nigeria: comparative analysis of artificial neural networks, Holt-Winters exponential smoothing and autoregressive integrated moving average models

Daniel Adedayo Adeyinka, Nazeem Muhajarine

COSMIN Risk of Bias tool to assess the quality of studies on reliability or measurement error of outcome measurement instruments: a Delphi study

  • Open Access
  • Research article

L. B. Mokkink, M. Boers, C. P. M. van der Vleuten, L. M. Bouter, J. Alonso, D. L. Patrick, H. C. W. de Vet, C. B. Terwee

Joint modelling of longitudinal lipids and time to coronary heart disease in the Jackson Heart Study

Wondwosen Kassahun-Yimer, Karen A. Valle, Adebamike A. Oshunbade, Michael E. Hall, Yuan-I. Min, Loretta Cain-Shields, Pramod Anugu, Adolfo Correa

Overlapping-sample Mendelian randomisation with multiple exposures: a Bayesian approach

  • Open Access
  • Research article

Linyi Zou, Hui Guo, Carlo Berzuini

Nothing wrong about change: the adequate choice of the dependent variable and design in prediction of cognitive training success

André Mattes, Mandy Roheger

Handling coarsened age information in the analysis of emergency department presentations

  • Open Access
  • Research article

Rhonda J. Rosychuk, Jeff W.N. Bachman, Anqi Chen, X. Joan Hu

Strengthening policy coding methodologies to improve COVID-19 disease modeling and policy responses: a proposed coding framework and recommendations

Jeff Lane, Michelle M. Garrison, James Kelley, Priya Sarma, Aaron Katz

A multi-country comparison of stochastic models of breast cancer mortality with P-splines smoothing approach

Sumaira Mubarik, Ying Hu, Chuanhua Yu

Integrating expert opinions with clinical trial data to analyse low-powered subgroup analyses: a Bayesian analysis of the VeRDiCT trial

Russell Thirard, Raimondo Ascione, Jane M. Blazeby, Chris A. Rogers

Qualitative research methods in medical dissertations: an observational methodological study on prevalence and reporting quality of dissertation abstracts in a German university

  • Open Access
  • Research article

Charlotte Ullrich, Anna Stürmlinger, Michel Wensing, Katja Krug

Variable selection in social-environmental data: sparse regression and tree ensemble machine learning approaches

Elizabeth Handorf, Yinuo Yin, Michael Slifker, Shannon Lynch

Linkage of primary care prescribing records and pharmacy dispensing Records in the Salford Lung Study: application in asthma

Holly Tibble, James Lay-Flurrie, Aziz Sheikh, Rob Horne, Mehrdad A. Mizani, Athanasios Tsanas

On Jones et al.’s method for extending Bland-Altman plots to limits of agreement with the mean for multiple observers

  • Open Access
  • Technical advance

Heidi S. Christensen, Jens Borgbjerg, Lars Børty, Martin Bøgsted

Use of out-of-hospital cardiac arrest registries to assess COVID-19 home mortality

Hervé Hubert, Valentine Baert, Jean-Baptiste Beuscart, Emmanuel Chazard

Psychometric properties of an English short version of the Trier Inventory for chronic Stress

  • Open Access
  • Research article

K. Petrowski, E. Braehler, B. Schmalbach, A. Hinz, C. Bastianon, T. Ritz

Long-term effects of asthma medication on asthma symptoms: an application of the targeted maximum likelihood estimation

Carolin Veit, Ronald Herrera, Gudrun Weinmayr, Jon Genuneit, Doris Windstetter, Christian Vogelberg, Erika von Mutius, Dennis Nowak, Katja Radon, Jessica Gerlich, Tobias Weinmann

Dec 19
Issue: 1/2019
Dec 21
Issue: 1/2021

Latest issues

scroll for more

use your arrow keys for more

scroll or use arrow keys for more