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The combined effect of pre-pregnancy body mass index and gestational weight gain on the risk of pre-labour and intrapartum caesarean section—The ICE-MCH study

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dc.contributor University of Iceland
dc.contributor.author Eloranta, Aino Maija
dc.contributor.author Gunnarsdottir, Ingibjörg
dc.contributor.author Thorisdottir, Birna
dc.contributor.author Gunnlaugsson, Geir
dc.contributor.author Birgisdottir, Bryndis Eva
dc.contributor.author Thorsdottir, Inga
dc.contributor.author Einarsdóttir, Kristjana
dc.date.accessioned 2023-04-28T01:04:26Z
dc.date.available 2023-04-28T01:04:26Z
dc.date.issued 2023-01-05
dc.identifier.citation Eloranta , A M , Gunnarsdottir , I , Thorisdottir , B , Gunnlaugsson , G , Birgisdottir , B E , Thorsdottir , I & Einarsdóttir , K 2023 , ' The combined effect of pre-pregnancy body mass index and gestational weight gain on the risk of pre-labour and intrapartum caesarean section—The ICE-MCH study ' , PLoS ONE , vol. 18 , no. 1 January , e0280060 , pp. e0280060 . https://doi.org/10.1371/journal.pone.0280060
dc.identifier.issn 1932-6203
dc.identifier.other PURE: 76436269
dc.identifier.other PURE UUID: 59702303-a3ff-4d80-a117-e866007cdd4b
dc.identifier.other Scopus: 85145668675
dc.identifier.other unpaywall: 10.1371/journal.pone.0280060
dc.identifier.uri https://hdl.handle.net/20.500.11815/4177
dc.description Funding Information: A project grant from the Research Fund of the University of Iceland (https://english.hi.is/research/the_university_of_iceland_research_ fund_0, author IT). A personal grant from Finnish Cultural Foundation (https://skr.fi/en, author AE). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Publisher Copyright: Copyright: © 2023 Eloranta et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Copyright: © 2023 Eloranta et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.description.abstract Women who are obese before pregnancy have a higher risk of caesarean section than normal weight women. We investigated the combined effect of pre-pregnancy weight and gestational weight gain on pre-labour and intrapartum caesarean section risk. We collected data on 22,763 singleton, term, live deliveries in 2003–2014 from the Icelandic Maternal and Child Health Study (ICE-MCH), based on Icelandic registries. These were the Icelandic Medical Birth Registry and the Saga Maternal and Child Health Database. Pre-pregnancy body mass index was categorised into underweight, normal weight, overweight and obese. Gestational weight gain was classified according to the Institute of Medicine's recommendation into below, within and above the recommended range. Logistic regression models, adjusted for maternal and gestational characteristics, were used to calculate adjusted odds ratios (AOR) and 95% confidence intervals (CI) for the risk of caesarean section. Obese women had a higher risk of pre-labour (AOR 1.56, 95% CI 1.34–1.81) and intrapartum caesarean section (AOR 1.92, 95% CI 1.70–2.17) than normal weight women in all categories of gestational weight gain. Gestational weight gain above the recommended range, compared to within the range, increased the risk of intrapartum caesarean section among normal weight (AOR 1.46, 95% CI 1.23–1.73) and overweight women (AOR 1.291, 95% CI 1.04–1.60). Gestational weight gain below the recommended range, compared to within the range, increased the risk of pre-labour caesarean section (AOR 1.64, 95% CI 1.20–2.25), but only among overweight women. Women who are obese before pregnancy have a high risk of caesarean section regardless of gestational weight gain. However, women who are normal weight or overweight before pregnancy and gain weight above the recommended range during pregnancy may also have an increased risk of caesarean section.
dc.format.extent e0280060
dc.language.iso en
dc.relation.ispartofseries PLoS ONE; 18(1 January)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Næringarfræðingar
dc.subject Child
dc.subject Pregnancy
dc.subject Female
dc.subject Humans
dc.subject Cesarean Section/adverse effects
dc.subject Overweight/complications
dc.subject Gestational Weight Gain
dc.subject Pregnancy Outcome
dc.subject Body Mass Index
dc.subject Obesity/complications
dc.subject Pregnancy Complications/etiology
dc.subject Risk Factors
dc.subject Multidisciplinary
dc.title The combined effect of pre-pregnancy body mass index and gestational weight gain on the risk of pre-labour and intrapartum caesarean section—The ICE-MCH study
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
dc.description.version Peer reviewed
dc.identifier.pmid 36603021
dc.identifier.doi https://doi.org/10.1371/journal.pone.0280060
dc.relation.url http://www.scopus.com/inward/record.url?scp=85145668675&partnerID=8YFLogxK
dc.contributor.department Faculty of Food Science and Nutrition
dc.contributor.department Other departments
dc.contributor.department Faculty of Sociology, Anthropology and Folkloristics
dc.contributor.department Faculty of Medicine
dc.contributor.school Health Sciences


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