Skip to main content
Key Specialties
Cardiology Diabetology Endocrinology Gastroenterology Geriatrics and Gerontology Gynecology and Obstetrics Hematology Infectious Disease Internal Medicine Nephrology Neurology Oncology Pediatrics Respiratory Medicine Rheumatology Surgery
Congress Coverage
2024 ACC Congress 2023 ESMO Congress 2023 EASD Congress 2023 ERS Congress 2023 ESC Congress
Clinical Collections
Advances in Alzheimer’s

Keynote webinar | Spotlight on medication adherence

LIVE: Thursday 27th June 2024, 18:00-19:30 (CEST)
Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.
ADVANCED SEARCH
Log in
Top
Journal of Foot and Ankle Research
Published in: Journal of Foot and Ankle Research 1/2009

Open Access 01-12-2009 | Research

A Rasch Analysis of the Manchester Foot Pain and Disability Index

Authors: Sara Muller, Edward Roddy

Published in: Journal of Foot and Ankle Research | Issue 1/2009

Login to get access

Abstract

Background

There is currently no interval-level measure of foot-related disability and this has hampered research in this area. The Manchester Foot Pain and Disability Index (FPDI) could potentially fill this gap.

Objective

To assess the fit of the three subscales (function, pain, appearance) of the FPDI to the Rasch unidimensional measurement model in order to form interval-level scores.

Methods

A two-stage postal survey at a general practice in the UK collected data from 149 adults aged 50 years and over with foot pain. The 17 FPDI items, in three subscales, were assessed for their fit to the Rasch model. Checks were carried out for differential item functioning by age and gender.

Results

The function and pain items fit the Rasch model and interval-level scores can be constructed. There were too few people without extreme scores on the appearance subscale to allow fit to the Rasch model to be tested.

Conclusion

The items from the FPDI function and pain subscales can be used to obtain interval level scores for these factors for use in future research studies in older adults. Further work is needed to establish the interval nature of these subscale scores in more diverse populations and to establish the measurement properties of these interval-level scores.
Appendix
Available only for authorised users
Literature
1.
Benvenuti F, Ferrucci L, Guralnik JM, Gangemi S, Baroni A: Foot pain and disability in older persons: an epidemiologic survey. J Am Geriatr Soc. 1995, 43: 479-484.CrossRefPubMed
2.
Leveille SG, Guralnik JM, Ferrucci L, Hirsch R, Simonsick E, Hochberg MC: Foot pain and disability in older women. Am J Epidemiol. 1998, 148: 657-665.CrossRefPubMed
3.
Menz HB, Lord SR: Foot pain impairs balance and functional ability in community-dwelling older people. J Am Podiatr Med Assoc. 2001, 91: 222-229.CrossRefPubMed
4.
Badlissi F, Dunn JE, Link CL, Keysor JJ, McKinlay JB, Felson DT: Foot musculoskeletal disorders, pain, and foot-related functional limitation in older persons. J Am Geriatr Soc. 2005, 53: 1029-1033. 10.1111/j.1532-5415.2005.53315.x.CrossRefPubMed
5.
Chen J, Devine A, Dick IM, Dhaliwal SS, Prince RL: Prevalence of lower extremity pain and its association with functionality and quality of life in elderly women in Australia. J Rheumatol. 2003, 30: 2689-2693.PubMed
6.
Garrow AP, Silman AJ, Macfarlane GJ: The Cheshire Foot Pain and Disability Survey: a population survey assessing prevalence and associations. Pain. 2004, 110: 378-384. 10.1016/j.pain.2004.04.019.CrossRefPubMed
7.
Keysor JJ, Dunn JE, Link CL, Badlissi F, Felson DT: Are foot disorders associated with functional limitation and disability among community-dwelling older adults?. J Aging Health. 2005, 17: 734-752. 10.1177/0898264305280998.CrossRefPubMed
8.
Keenan AM, Tennant A, Fear J, Emery P, Conaghan PG: Impact of multiple joint problems on daily living tasks in people in the community over age fifty-five. Arthritis Rheum. 2006, 55: 757-764. 10.1002/art.22239.CrossRefPubMed
9.
Peat G, Thomas E, Wilkie R, Croft P: Multiple joint pain and lower extremity disability in middle and old age. Disabil Rehabil. 2006, 28: 1543-1549. 10.1080/09638280600646250.CrossRefPubMed
10.
Garrow AP, Papageorgiou AC, Silman AJ, Thomas E, Jayson MI, Macfarlane GJ: Development and validation of a questionnaire to assess disabling foot pain. Pain. 2000, 85: 107-113. 10.1016/S0304-3959(99)00263-8.CrossRefPubMed
11.
Menz HB, Morris ME: Determinants of disabling foot pain in retirement village residents. J Am Podiatr Med Assoc. 2005, 95: 573-579.CrossRefPubMed
12.
Menz HB, Tiedemann A, Kwan MM, Plumb K, Lord SR: Foot pain in community-dwelling older people: an evaluation of the Manchester Foot Pain and Disability Index. Rheumatology (Oxford). 2006, 45: 863-867. 10.1093/rheumatology/kel002.CrossRef
13.
Cook CE, Cleland J, Pietrobon R, Garrow AP, Macfarlane GJ: Calibration of an item pool for assessing the disability associated with foot pain: an application of item response theory to the Manchester Foot Pain and Disability Index. Physiotherapy. 2007, 93: 89-95. 10.1016/j.physio.2006.12.009.CrossRef
14.
Roddy E, Muller S, Thomas E: Defining disabling foot pain in older adults: further examination of the Manchester Foot Pain and Disability Index. Rheumatology (Oxford). 2009, 48: 992-996. 10.1093/rheumatology/kep156.CrossRef
15.
Waxman R, Woodburn H, Powell M, Woodburn H, Blackburn S, Helliwell P: FOOTSTEP: a randomized controlled trial investigating the clinical and cost effectiveness of a patient self-management program for basic foot care in the elderly. J Clin Epidemiol. 2003, 56: 1092-1099. 10.1016/S0895-4356(03)00197-5.CrossRefPubMed
16.
Merbitz C, Morris J, Grip JC: Ordinal scales and foundations of misinference. Arch Phys Med Rehabil. 1989, 70: 308-312.PubMed
17.
Wright BD, Linacre JM: Observations are always ordinal; measurements, however, must be interval. Arch Phys Med Rehabil. 1989, 70: 857-860.PubMed
18.
Fischer GH: Derivations of the Rasch model. Rasch models: foundations, recent developments, and applications. Edited by: Fischer GH, Molenaar IW. 1995, New York: Springer-Verlag, 15-38.CrossRef
19.
Rasch G: Probabilistic model for some intelligence and attainment tests. 1960, Chigaco: The University of Chicago Press
20.
Thomas E, Wilkie R, Peat G, Hill S, Dziedzic K, Croft PR: The North Staffordshire Osteoarthritis Project--NorStOP: prospective, 3-year study of the epidemiology and management of clinical osteoarthritis in a general population of older adults. BMC Musculoskelet Disord. 2004, 5: 2-10.1186/1471-2474-5-2.CrossRefPubMedPubMedCentral
21.
Wright BD, Stone MH: Best test design: Rasch Measurement. 1979, Chicago: Mesa Press
22.
Bond TG, Fox CM: Applying the Rasch model. 2001, Mahwah: Lawrence Erlbaum Associates
23.
Smith EV, Smith RM: Introduction to Rasch Measurement. 2004, Maple Grove: JAM Press
24.
Karabatsos G: The Rasch model, additive conjoint measurement, and new probabilistic measurement theory. Introduction to Rasch Measurement. Edited by: Smith EV, Smith RM. 2004, Maple Grove: JAM Press, 330-364.
25.
Masters GN: A Rasch model for partial credit scoring. Psychometrika. 1982, 47 (2): 149-173. 10.1007/BF02296272.CrossRef
26.
Andrich D, Lyne A, Sheridan B, Luo G: RUMM2020. 2003, Perth: RUMM Laboratory
27.
Smith EV: Detecting and evaluating the impact of multidimensionality using item fit statistics and principle components analysis of residuals. J Appl Meas. 2002, 3: 205-231.PubMed
28.
Marais I, Andrich D: Formalizing dimension and response violations of local independence in the unidimensional Rasch model. J Appl Meas. 2008, 9: 200-215.PubMed
29.
Andrich D, Sheridan BS, Luo G: Interpreting RUMM2020. Part I: Dichotomous data. 2003, Perth: RUMM Laboratory
30.
Tennant A, Conaghan PG: The Rasch measurement model in rheumatology: what is it and why use it? When should it be applied, and what should one look for in a Rasch paper?. Arthritis Rheum. 2009, 57: 1358-1362. 10.1002/art.23108.CrossRef
31.
Pallent JF, Miller RL, Tennant A: Evaluation of the Edinburgh Post Natal Depression Scale using Rasch analysis. BMC Psychiatry. 2006, 6: 28-10.1186/1471-244X-6-28.CrossRef
32.
Bland M: An Introduction to Medical Statistics. 1995, Oxford: Oxford University Press
33.
Guttman L: The problem of attitude and opinion in measurement. Measurement and Prediction. Edited by: Stouffer SA, Guttman L, Suchman EA, Lazarsfeld PF, Star SA, Clausen JA. 1950, New York: Wiley
34.
Pallant JF, Tennant A: An introduction to the Rasch measurement model: An example using the Hospital Anxiety and Depression Scale (HADS). Br J Clin Psychol. 2007, 46: 1-18. 10.1348/014466506X96931.CrossRefPubMed
35.
Linacre JM: Understanding Rasch measurement: optimizing rating scale category effectiveness. J Appl Meas. 2002, 3: 85-106.PubMed
36.
Helliwell P, Reay N, Gilworth G, Redmond A, Slade A, Tennant A, Woodburn J: Development of a foot impact scale for rheumatoid arthritis. Arthritis Rheum. 2005, 53: 418-422. 10.1002/art.21176.CrossRefPubMed
Metadata
Title
A Rasch Analysis of the Manchester Foot Pain and Disability Index
Authors
Sara Muller
Edward Roddy
Publication date
01-12-2009
Publisher
BioMed Central
Published in
Journal of Foot and Ankle Research / Issue 1/2009
Electronic ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-2-29

Other articles of this Issue 1/2009

Journal of Foot and Ankle Research 1/2009 Go to the issue

Research

Hydrodebridement of wounds: effectiveness in reducing wound bacterial contamination and potential for air bacterial contamination

Research

A geometric analysis of hallux valgus: correlation with clinical assessment of severity

Methodology article

Reliability of measuring abductor hallucis muscle parameters using two different diagnostic ultrasound machines

Research

Clinical audit of foot problems in patients with rheumatoid arthritis treated at Counties Manukau District Health Board, Auckland, New Zealand

Erratum

Erratum to: Arch height change during sit-to-stand: an alternative for the navicular drop test

Review

Tibialis posterior in health and disease: a review of structure and function with specific reference to electromyographic studies