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Published in: BMC Pregnancy and Childbirth 1/2020

Open Access 01-12-2020 | Research article

Measuring women’s experiences of decision-making and aspects of midwifery support: a confirmatory factor analysis of the revised Childbirth Experience Questionnaire

Authors: Anna Dencker, Liselotte Bergqvist, Marie Berg, Josephine T. V. Greenbrook, Christina Nilsson, Ingela Lundgren

Published in: BMC Pregnancy and Childbirth | Issue 1/2020

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Abstract

Background

Women’s experiences of labour and birth can have both short- and long-term effects on their physical and psychological health. The original Swedish version of the Childbirth Experience Questionnaire (CEQ) has shown to have good psychometric quality and ability to differentiate between groups known to differ in childbirth experience. Two subscales were revised in order to include new items with more relevant content about decision-making and aspects of midwifery support. The aim of the study was to develop new items in two subscales and to test construct validity and reliability of the revised version of CEQ, called CEQ2.

Method

A total of 11 new items (Professional Support and Participation) and 14 original items from the first CEQ (Own capacity and Perceived safety), were answered by 682 women with spontaneous onset of labour. Confirmatory factor analysis was used to analyse model fit.

Results

The hypothesised four-factor model showed good fit (CMIN = 2.79; RMR = 0.33; GFI = 0.94; CFI = 0.94; TLI = 0.93; RMSEA = 0.054 and PCLOSE = 0.12) Cronbach’s alpha was good for all subscales (0.82, 0.83, 0.76 and 0.73) and for the total scale (0.91).

Conclusions

CEQ2, like the first CEQ, yields four important aspects of experience during labour and birth showing good psychometric performance, including decision-making and aspects of midwifery support, in both primiparous and multiparous women.
Literature
1.
go back to reference Attanasio L, McPherson M, Kozhimannil K. Positive childbirth experiences in US hospitals: a mixed methods analysis. Matern Child Health J. 2014;18(5):1280–90.PubMedPubMedCentralCrossRef Attanasio L, McPherson M, Kozhimannil K. Positive childbirth experiences in US hospitals: a mixed methods analysis. Matern Child Health J. 2014;18(5):1280–90.PubMedPubMedCentralCrossRef
2.
go back to reference Karlström A, Nystedt A, Hildingsson I. The meaning of a very positive birth experience: focus groups discussions with women. BMC Pregnancy Childbirth. 2015;15:251.PubMedPubMedCentralCrossRef Karlström A, Nystedt A, Hildingsson I. The meaning of a very positive birth experience: focus groups discussions with women. BMC Pregnancy Childbirth. 2015;15:251.PubMedPubMedCentralCrossRef
3.
go back to reference Fair CD, Morrison TE. The relationship between prenatal control, expectations, experienced control, and birth satisfaction among primiparous women. Midwifery. 2012;28(1):39–44.PubMedCrossRef Fair CD, Morrison TE. The relationship between prenatal control, expectations, experienced control, and birth satisfaction among primiparous women. Midwifery. 2012;28(1):39–44.PubMedCrossRef
4.
go back to reference Sigurdardottir VL, Gamble J, Gudmundsdottir B, Kristjansdottir H, Sveinsdottir H, Gottfredsdottir H. The predictive role of support in the birth experience: a longitudinal cohort study. Women Birth. 2017;30(6):450–9.PubMedCrossRef Sigurdardottir VL, Gamble J, Gudmundsdottir B, Kristjansdottir H, Sveinsdottir H, Gottfredsdottir H. The predictive role of support in the birth experience: a longitudinal cohort study. Women Birth. 2017;30(6):450–9.PubMedCrossRef
5.
go back to reference Ayers S, Bond R, Bertullies S, Wijma K. The aetiology of post-traumatic stress following childbirth: a meta-analysis and theoretical framework. Psychol Med. 2016;46(6):1121–34.PubMedCrossRef Ayers S, Bond R, Bertullies S, Wijma K. The aetiology of post-traumatic stress following childbirth: a meta-analysis and theoretical framework. Psychol Med. 2016;46(6):1121–34.PubMedCrossRef
6.
go back to reference Elmir R, Schmied V, Wilkes L, Jackson D. Women’s perceptions and experiences of a traumatic birth: a meta-ethnography. J Adv Nurs. 2010;66. Elmir R, Schmied V, Wilkes L, Jackson D. Women’s perceptions and experiences of a traumatic birth: a meta-ethnography. J Adv Nurs. 2010;66.
7.
go back to reference Pang MW, Leung TN, Lau TK, Hang Chung TK. Impact of first childbirth on changes in Women’s preference for mode of delivery: follow-up of a longitudinal observational study. Birth. 2008;35(2):121–8.PubMedCrossRef Pang MW, Leung TN, Lau TK, Hang Chung TK. Impact of first childbirth on changes in Women’s preference for mode of delivery: follow-up of a longitudinal observational study. Birth. 2008;35(2):121–8.PubMedCrossRef
8.
go back to reference Ross-Davie M, Cheyne H. Intrapartum support: what do women want? A literature review. Evidence Based Midwifery. 2014;12(2):52–8. Ross-Davie M, Cheyne H. Intrapartum support: what do women want? A literature review. Evidence Based Midwifery. 2014;12(2):52–8.
9.
go back to reference Larkin P, Begley CM, Devane D. 'Not enough people to look after you': an exploration of women's experiences of childbirth in the Republic of Ireland. Midwifery. 2012;28(1):98–105.PubMedCrossRef Larkin P, Begley CM, Devane D. 'Not enough people to look after you': an exploration of women's experiences of childbirth in the Republic of Ireland. Midwifery. 2012;28(1):98–105.PubMedCrossRef
10.
go back to reference Dencker A, Nilsson C, Begley C, Jangsten E, Mollberg M, Patel H, Wigert H, Hessman E, Sjoblom H, Sparud-Lundin C. Causes and outcomes in studies of fear of childbirth: a systematic review. Women Birth. 2019;32(2):99–111.PubMedCrossRef Dencker A, Nilsson C, Begley C, Jangsten E, Mollberg M, Patel H, Wigert H, Hessman E, Sjoblom H, Sparud-Lundin C. Causes and outcomes in studies of fear of childbirth: a systematic review. Women Birth. 2019;32(2):99–111.PubMedCrossRef
11.
go back to reference Moller L, Josefsson A, Lilliecreutz C, Gunnervik C, Bladh M, Sydsjo G. Reproduction, fear of childbirth and obstetric outcomes in women treated for fear of childbirth in their first pregnancy: a historical cohort. Acta Obstet Gynecol Scand. 2019;98(3):374–81.PubMedCrossRef Moller L, Josefsson A, Lilliecreutz C, Gunnervik C, Bladh M, Sydsjo G. Reproduction, fear of childbirth and obstetric outcomes in women treated for fear of childbirth in their first pregnancy: a historical cohort. Acta Obstet Gynecol Scand. 2019;98(3):374–81.PubMedCrossRef
12.
go back to reference Hollander MH, van Hastenberg E, van Dillen J, van Pampus MG, de Miranda E, Stramrood CAI. Preventing traumatic childbirth experiences: 2192 women's perceptions and views. Archives Women's Mental Health. 2017;20(4):515–23.CrossRef Hollander MH, van Hastenberg E, van Dillen J, van Pampus MG, de Miranda E, Stramrood CAI. Preventing traumatic childbirth experiences: 2192 women's perceptions and views. Archives Women's Mental Health. 2017;20(4):515–23.CrossRef
13.
go back to reference Bell AF, Andersson E. The birth experience and women's postnatal depression: a systematic review. Midwifery. 2016;39:112–23.PubMedCrossRef Bell AF, Andersson E. The birth experience and women's postnatal depression: a systematic review. Midwifery. 2016;39:112–23.PubMedCrossRef
14.
go back to reference Quinn K, Spiby H, Slade P. A longitudinal study exploring the role of adult attachment in relation to perceptions of pain in labour, childbirth memory and acute traumatic stress responses. J Reprod Infant Psychol. 2015;33(3):256–67.CrossRef Quinn K, Spiby H, Slade P. A longitudinal study exploring the role of adult attachment in relation to perceptions of pain in labour, childbirth memory and acute traumatic stress responses. J Reprod Infant Psychol. 2015;33(3):256–67.CrossRef
15.
go back to reference Berg M, Asta Olafsdottir O, Lundgren I. A midwifery model of woman-centred childbirth care--in Swedish and Icelandic settings. Sexual Reprod Healthc. 2012;3(2):79–87.CrossRef Berg M, Asta Olafsdottir O, Lundgren I. A midwifery model of woman-centred childbirth care--in Swedish and Icelandic settings. Sexual Reprod Healthc. 2012;3(2):79–87.CrossRef
16.
go back to reference Cornally P, Butler M, Murphy M, Rath A, Canty G. Exploring women's experiences of care in labour. Evidence Based Midwifery. 2014;12(3):89–94. Cornally P, Butler M, Murphy M, Rath A, Canty G. Exploring women's experiences of care in labour. Evidence Based Midwifery. 2014;12(3):89–94.
17.
go back to reference Nilver H, Begley C, Berg M. Measuring women's childbirth experiences: a systematic review for identification and analysis of validated instruments. BMC Pregnancy Childbirth. 2017;17(1):203.PubMedPubMedCentralCrossRef Nilver H, Begley C, Berg M. Measuring women's childbirth experiences: a systematic review for identification and analysis of validated instruments. BMC Pregnancy Childbirth. 2017;17(1):203.PubMedPubMedCentralCrossRef
18.
go back to reference Dencker A, Taft C, Bergqvist L, Lilja H, Berg M. Childbirth experience questionnaire (CEQ): development and evaluation of a multidimensional instrument. BMC Pregnancy Childbirth. 2010;10(81). Dencker A, Taft C, Bergqvist L, Lilja H, Berg M. Childbirth experience questionnaire (CEQ): development and evaluation of a multidimensional instrument. BMC Pregnancy Childbirth. 2010;10(81).
19.
go back to reference Walker KF, Wilson P, Bugg GJ, Dencker A, Thornton JG. Childbirth experience questionnaire: validating its use in the United Kingdom. BMC Pregnancy Childbirth. 2015;15(1):86.PubMedPubMedCentralCrossRef Walker KF, Wilson P, Bugg GJ, Dencker A, Thornton JG. Childbirth experience questionnaire: validating its use in the United Kingdom. BMC Pregnancy Childbirth. 2015;15(1):86.PubMedPubMedCentralCrossRef
20.
go back to reference Soriano-Vidal FJ, Oliver-Roig A, Cabrero-Garcia J, Congost-Maestre N, Dencker A, Richart-Martinez M. The Spanish version of the Childbirth Experience Questionnaire (CEQ-E): reliability and validity assessment.(Report). BMC Pregnancy Childbirth. 2016;16(1). Soriano-Vidal FJ, Oliver-Roig A, Cabrero-Garcia J, Congost-Maestre N, Dencker A, Richart-Martinez M. The Spanish version of the Childbirth Experience Questionnaire (CEQ-E): reliability and validity assessment.(Report). BMC Pregnancy Childbirth. 2016;16(1).
21.
go back to reference Abbaspoor Z, Moghaddam-Banaem L, Ronaghi S, Dencker A. Translation and cultural adaptation of the childbirth experience questionnaire (CEQ) in Iran. Iran J Nurs Midwifery Res. 2019;24(4):296–300.PubMedPubMedCentral Abbaspoor Z, Moghaddam-Banaem L, Ronaghi S, Dencker A. Translation and cultural adaptation of the childbirth experience questionnaire (CEQ) in Iran. Iran J Nurs Midwifery Res. 2019;24(4):296–300.PubMedPubMedCentral
22.
go back to reference Zhu X, Wang Y, Zhou H, Qiu L, Pang R. Adaptation of the childbirth experience questionnaire (CEQ) in China: a multisite cross-sectional study. PLoS One. 2019;14(4):e0215373.PubMedPubMedCentralCrossRef Zhu X, Wang Y, Zhou H, Qiu L, Pang R. Adaptation of the childbirth experience questionnaire (CEQ) in China: a multisite cross-sectional study. PLoS One. 2019;14(4):e0215373.PubMedPubMedCentralCrossRef
23.
go back to reference Patabendige M. Childbirth experience questionnaire (CEQ): research proposal for translation and validation into Sinhala language among a Lankan cohort of women. BMC Res Notes. 2019;12(1):458.PubMedPubMedCentralCrossRef Patabendige M. Childbirth experience questionnaire (CEQ): research proposal for translation and validation into Sinhala language among a Lankan cohort of women. BMC Res Notes. 2019;12(1):458.PubMedPubMedCentralCrossRef
24.
go back to reference Lathrop A, Bonsack CF, Haas DM. Women's experiences with water birth: a matched groups prospective study. Birth. 2018;45(4):416–23.PubMedCrossRef Lathrop A, Bonsack CF, Haas DM. Women's experiences with water birth: a matched groups prospective study. Birth. 2018;45(4):416–23.PubMedCrossRef
25.
go back to reference King L, McKenzie-McHarg K, Horsch A. Testing a cognitive model to predict posttraumatic stress disorder following childbirth. BMC Pregnancy Childbirth. 2017;17(1):32.PubMedPubMedCentralCrossRef King L, McKenzie-McHarg K, Horsch A. Testing a cognitive model to predict posttraumatic stress disorder following childbirth. BMC Pregnancy Childbirth. 2017;17(1):32.PubMedPubMedCentralCrossRef
26.
go back to reference Ternström E, Hildingsson I, Haines H, Karlström A, Sundin Ö, Ekdahl J, Segeblad B, Larsson B, Rondung E, Rubertsson C. A randomized controlled study comparing internet-based cognitive behavioral therapy and counselling by standard care for fear of birth – a study protocol. Sexual Reprod Healthc. 2017;13:75–82.CrossRef Ternström E, Hildingsson I, Haines H, Karlström A, Sundin Ö, Ekdahl J, Segeblad B, Larsson B, Rondung E, Rubertsson C. A randomized controlled study comparing internet-based cognitive behavioral therapy and counselling by standard care for fear of birth – a study protocol. Sexual Reprod Healthc. 2017;13:75–82.CrossRef
27.
go back to reference Congdon JL, Adler NE, Epel ES, Laraia BA, Bush NR. A prospective investigation of prenatal mood and childbirth perceptions in an ethnically diverse, Low-Income Sample. Birth. 2016;43(2):159–66.PubMedPubMedCentralCrossRef Congdon JL, Adler NE, Epel ES, Laraia BA, Bush NR. A prospective investigation of prenatal mood and childbirth perceptions in an ethnically diverse, Low-Income Sample. Birth. 2016;43(2):159–66.PubMedPubMedCentralCrossRef
28.
go back to reference Handelzalts JE, Zacks A, Levy S. The association of birth model with resilience variables and birth experience: home versus hospital birth. Midwifery. 2016;36:80–5.PubMedCrossRef Handelzalts JE, Zacks A, Levy S. The association of birth model with resilience variables and birth experience: home versus hospital birth. Midwifery. 2016;36:80–5.PubMedCrossRef
29.
go back to reference Toivonen E, Palomaki O, Huhtala H, Uotila J. Maternal experiences of vaginal breech delivery. Birth. 2014;41(4):316–22.PubMedCrossRef Toivonen E, Palomaki O, Huhtala H, Uotila J. Maternal experiences of vaginal breech delivery. Birth. 2014;41(4):316–22.PubMedCrossRef
30.
go back to reference Bergqvist L, Dencker A, Taft C, Lilja H, Ladfors L, Skaring-Thorsén L, Berg M. Women’s experiences after early versus postponed oxytocin treatment of slow progress in first childbirth – a randomized controlled trial. Sexual Reprod Healthc. 2012;3(2):61–5.CrossRef Bergqvist L, Dencker A, Taft C, Lilja H, Ladfors L, Skaring-Thorsén L, Berg M. Women’s experiences after early versus postponed oxytocin treatment of slow progress in first childbirth – a randomized controlled trial. Sexual Reprod Healthc. 2012;3(2):61–5.CrossRef
31.
go back to reference Begley CM, Gross MM, Dencker A, Benstoem C, Berg M, Devane D. Outcome measures in studies on the use of oxytocin for the treatment of delay in labour: a systematic review. Midwifery. 2014;30(9):975–82.PubMedCrossRef Begley CM, Gross MM, Dencker A, Benstoem C, Berg M, Devane D. Outcome measures in studies on the use of oxytocin for the treatment of delay in labour: a systematic review. Midwifery. 2014;30(9):975–82.PubMedCrossRef
32.
go back to reference Downe S, Finlayson K, Oladapo OT, Bonet M, Gulmezoglu AM. What matters to women during childbirth: a systematic qualitative review. PLoS One. 2018;13(4):e0194906.PubMedPubMedCentralCrossRef Downe S, Finlayson K, Oladapo OT, Bonet M, Gulmezoglu AM. What matters to women during childbirth: a systematic qualitative review. PLoS One. 2018;13(4):e0194906.PubMedPubMedCentralCrossRef
33.
go back to reference Walker KF, Dencker A, Thornton JG. Childbirth experience questionnaire 2: validating its use in the United Kingdom. Eur J Obstet Gynecol Reprod Biol X. 2020;5:100097.PubMedCrossRef Walker KF, Dencker A, Thornton JG. Childbirth experience questionnaire 2: validating its use in the United Kingdom. Eur J Obstet Gynecol Reprod Biol X. 2020;5:100097.PubMedCrossRef
34.
go back to reference Ghanbari-Homayi S, Dencker A, Fardiazar Z, Jafarabadi MA, Mohammad-Alizadeh-Charandabi S, Meedya S, Mohammadi E, Mirghafourvand M. Validation of the Iranian version of the childbirth experience questionnaire 2.0. BMC Pregnancy Childbirth. 2019;19(1):465.PubMedPubMedCentralCrossRef Ghanbari-Homayi S, Dencker A, Fardiazar Z, Jafarabadi MA, Mohammad-Alizadeh-Charandabi S, Meedya S, Mohammadi E, Mirghafourvand M. Validation of the Iranian version of the childbirth experience questionnaire 2.0. BMC Pregnancy Childbirth. 2019;19(1):465.PubMedPubMedCentralCrossRef
35.
go back to reference Mattison CA, Dion ML, Lavis JN, Hutton EK, Wilson MG. Midwifery and obstetrics: factors influencing mothers' satisfaction with the birth experience. Birth. 2018;45(3):322–7.PubMedCrossRef Mattison CA, Dion ML, Lavis JN, Hutton EK, Wilson MG. Midwifery and obstetrics: factors influencing mothers' satisfaction with the birth experience. Birth. 2018;45(3):322–7.PubMedCrossRef
36.
go back to reference Ferguson S, Browne J, Taylor J, Davis D. Sense of coherence and women′s birthing outcomes: A longitudinal survey. Midwifery. 2016;34(Supplement C):158–65.PubMedCrossRef Ferguson S, Browne J, Taylor J, Davis D. Sense of coherence and women′s birthing outcomes: A longitudinal survey. Midwifery. 2016;34(Supplement C):158–65.PubMedCrossRef
37.
go back to reference Mukamurigo JU, Berg M, Ntaganira J, Nyirazinyoye L, Dencker A. Associations between perceptions of care and women's childbirth experience: a population-based cross-sectional study in Rwanda. BMC Pregnancy Childbirth. 2017;17(1):181.PubMedPubMedCentralCrossRef Mukamurigo JU, Berg M, Ntaganira J, Nyirazinyoye L, Dencker A. Associations between perceptions of care and women's childbirth experience: a population-based cross-sectional study in Rwanda. BMC Pregnancy Childbirth. 2017;17(1):181.PubMedPubMedCentralCrossRef
38.
go back to reference Fayers PM, Machin D: Quality of life, assessments, analysis and interpretation, 3 edn: Wiley; 2016. Fayers PM, Machin D: Quality of life, assessments, analysis and interpretation, 3 edn: Wiley; 2016.
39.
go back to reference Bohren MA, Hofmeyr GJ, Sakala C, Fukuzawa RK, Cuthbert A. Continuous support for women during childbirth. Cochrane Database Syst Rev. 2017;7:Cd003766.PubMed Bohren MA, Hofmeyr GJ, Sakala C, Fukuzawa RK, Cuthbert A. Continuous support for women during childbirth. Cochrane Database Syst Rev. 2017;7:Cd003766.PubMed
40.
go back to reference Hodnett ED, Gates S, Hofmeyr GJ, Sakala C. Continuous support for women during childbirth. Cochrane Database Syst Rev. 2013;7:Cd003766.PubMed Hodnett ED, Gates S, Hofmeyr GJ, Sakala C. Continuous support for women during childbirth. Cochrane Database Syst Rev. 2013;7:Cd003766.PubMed
41.
go back to reference Leap N, Hunter B: Supporting women for labour and birth : a thoughtful guide: Abingdon, Oxon. New York, NY : Routledge; 2016. Leap N, Hunter B: Supporting women for labour and birth : a thoughtful guide: Abingdon, Oxon. New York, NY : Routledge; 2016.
42.
go back to reference Bryar RM, Sinclair M: Theory for midwifery practice, 2. ed. edn. Houndmills: Houndmills : Palgrave; 2011. Bryar RM, Sinclair M: Theory for midwifery practice, 2. ed. edn. Houndmills: Houndmills : Palgrave; 2011.
43.
go back to reference Nieuwenhuijze MJ, Low LK, Korstjens I, Lagro-Janssen T. The role of maternity care providers in promoting shared decision making regarding birthing positions during the second stage of labor. J Midwifery Women's Health. 2014;59(3):277–85.CrossRef Nieuwenhuijze MJ, Low LK, Korstjens I, Lagro-Janssen T. The role of maternity care providers in promoting shared decision making regarding birthing positions during the second stage of labor. J Midwifery Women's Health. 2014;59(3):277–85.CrossRef
44.
go back to reference Lawrence A, Lewis L, Hofmeyr GJ, Styles C. Maternal positions and mobility during first stage labour. Cochrane Database Syst Rev. 2013;2013(8):CD003934. Lawrence A, Lewis L, Hofmeyr GJ, Styles C. Maternal positions and mobility during first stage labour. Cochrane Database Syst Rev. 2013;2013(8):CD003934.
45.
go back to reference Nieuwenhuijze MJ, Korstjens I, de Jonge A, de Vries R, Lagro-Janssen A. On speaking terms: a Delphi study on shared decision-making in maternity care. BMC Pregnancy Childbirth. 2014;14:223.PubMedPubMedCentralCrossRef Nieuwenhuijze MJ, Korstjens I, de Jonge A, de Vries R, Lagro-Janssen A. On speaking terms: a Delphi study on shared decision-making in maternity care. BMC Pregnancy Childbirth. 2014;14:223.PubMedPubMedCentralCrossRef
46.
go back to reference Renfrew MJ, McFadden A, Bastos MH, Campbell J, Channon AA, Cheung NF, Silva DRAD, Downe S, Kennedy HP, Malata A, et al. Midwifery and quality care: findings from a new evidence-informed framework for maternal and newborn care. Lancet. 2014;384(9948):1129–45.PubMedCrossRef Renfrew MJ, McFadden A, Bastos MH, Campbell J, Channon AA, Cheung NF, Silva DRAD, Downe S, Kennedy HP, Malata A, et al. Midwifery and quality care: findings from a new evidence-informed framework for maternal and newborn care. Lancet. 2014;384(9948):1129–45.PubMedCrossRef
47.
go back to reference Mukamurigo J, Dencker A, Ntaganira J, Berg M. The meaning of a poor childbirth experience - a qualitative phenomenological study with women in Rwanda. PLoS One. 2017;12(12):e0189371.PubMedPubMedCentralCrossRef Mukamurigo J, Dencker A, Ntaganira J, Berg M. The meaning of a poor childbirth experience - a qualitative phenomenological study with women in Rwanda. PLoS One. 2017;12(12):e0189371.PubMedPubMedCentralCrossRef
48.
go back to reference Waldenström U, Hildingsson I, Rubertsson C, Rådestad I. A negative birth experience: prevalence and risk factors in a national sample. Birth. 2004;31(1):17–27.PubMedCrossRef Waldenström U, Hildingsson I, Rubertsson C, Rådestad I. A negative birth experience: prevalence and risk factors in a national sample. Birth. 2004;31(1):17–27.PubMedCrossRef
49.
go back to reference Duff E. WHO recommendations in intrapartum care for a positive childbirth experience. Midwifery. 2018;61:A1.CrossRef Duff E. WHO recommendations in intrapartum care for a positive childbirth experience. Midwifery. 2018;61:A1.CrossRef
Metadata
Title
Measuring women’s experiences of decision-making and aspects of midwifery support: a confirmatory factor analysis of the revised Childbirth Experience Questionnaire
Authors
Anna Dencker
Liselotte Bergqvist
Marie Berg
Josephine T. V. Greenbrook
Christina Nilsson
Ingela Lundgren
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Pregnancy and Childbirth / Issue 1/2020
Electronic ISSN: 1471-2393
DOI
https://doi.org/10.1186/s12884-020-02869-0

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