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Body Mass Index, Overweight, and Obesity in Swedish Women Born Post-term
Univ Auckland, Liggins Inst, Private Bag 92019, Auckland, New Zealand..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
Univ Auckland, Liggins Inst, Private Bag 92019, Auckland, New Zealand..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Pediatrics.
2016 (English)In: Paediatric and Perinatal Epidemiology, ISSN 0269-5022, E-ISSN 1365-3016, Vol. 30, no 4, 320-324 p.Article in journal (Refereed) PublishedText
Abstract [en]

BackgroundThere is increasing evidence that post-term birth (42 weeks of gestation) is associated with adverse long-term outcomes. We assessed whether women born post-term displayed increased risk of overweight and obesity in adulthood. MethodsData were collected at first antenatal visit (similar to 10-12 weeks of gestation) on singleton Swedish women aged 18 years in 1991-2009 (mean age 26.1 years), who were born post-term (n = 27 153) or at term (37-41 weeks of gestation; n = 184 245). Study outcomes were evaluated for continuous associations with gestational age. Stratified analyses were carried out comparing women born post-term or at term. Analyses were also run with a 2-week buffer between groups to account for possible errors in gestational age estimation, comparing women born very post-term (43 weeks of gestation; n = 5761) to those born within a narrower term window (38-40 weeks of gestation; n = 130 110). ResultsIncreasing gestational age was associated with greater adult weight and body mass index (BMI). Stratified analyses showed that women born post-term were 0.5 kg heavier and had BMI 0.2 kg/m(2) greater than those born at term. Differences were more marked between women born very post-term (43 weeks) vs. a narrower term group (38-40 weeks): 1.0 kg and 0.3 kg/m(2). The adjusted relative risks of overweight/obesity and obesity in women born very post-term were 1.13 and 1.12 times higher, respectively, than in those born at term. ConclusionsPost-term birth is associated with greater BMI and increased risk of overweight and obesity in adulthood, particularly among women born 43 weeks of gestation.

Place, publisher, year, edition, pages
2016. Vol. 30, no 4, 320-324 p.
Keyword [en]
adult, body mass index, females, gestational age, obesity, overweight, prolonged gestation
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:uu:diva-299857DOI: 10.1111/ppe.12292ISI: 000378638300003PubMedID: 27016177OAI: oai:DiVA.org:uu-299857DiVA: diva2:950269
Available from: 2016-07-29 Created: 2016-07-28 Last updated: 2016-07-29Bibliographically approved

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Lundgren, MariaAhlsson, Fredrik
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