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dc.contributor.authorJacobsen, Bjarne Koster
dc.contributor.authorKnutsen, Synnøve Fønnebø
dc.contributor.authorOda, Keiji
dc.contributor.authorFraser, Gary E.
dc.date.accessioned2014-03-05T09:54:48Z
dc.date.available2014-03-05T09:54:48Z
dc.date.issued2013
dc.description.abstractBackground: Some epidemiological, clinical, and laboratory studies suggest that underweight and obesity impact fertility. Methods: This is cross-sectional study of 33,159 North American Adventist women, who were nulliparous at age 20 years and who, as a group, have a healthy lifestyle. Logistic regression analysis was used to assess how body mass index (BMI, kg/m2) at age 20 was related to never becoming pregnant, never giving birth to a living child, or not giving birth to a second or third child. Results: A total of 4954 (15%) of the women reported never becoming pregnant (nulligravidity) and 7461 (23%) women remained nulliparous. Underweight (BMI<18.5 kg/m2) at age 20 was associated with approximately 13% increased risk of nulligravidity or nulliparity. Women with BMI≥32.5 kg/m2 when aged 20 had 2.5 (95% CI: 2.0, 3.1) times increased odds of nulliparity compared to women with BMI 20–24.9 kg/m2. Increased risk was found for all groups of overweight women (BMI≥25 kg/m2). However, if the women gave birth to one live child after age 20, BMI≥32.5 kg/m2 at age 20 had less impact (OR 1.6 [95% CI: 1.2, 2.2]) on the likelihood of not delivering a second child. In women who delivered two living children, obesity at age 20 had no bearing on the odds of having a third child.en
dc.identifier.citationJournal of Women's Health 22(2013) nr. 5 s. 460-466en
dc.identifier.issn1540-9996
dc.identifier.otherFRIDAID 1025939
dc.identifier.otherhttp://dx.doi.org/10.1089/jwh.2012.3727
dc.identifier.urihttps://hdl.handle.net/10037/5917
dc.identifier.urnURN:NBN:no-uit_munin_5611
dc.language.isoengen
dc.publisherMary Ann Lieberten
dc.rights.accessRightsopenAccess
dc.subjectReproduksjonen
dc.subjectFedmeen
dc.subjectVDP::Medical disciplines: 700::Health sciences: 800::Epidemiology medical and dental statistics: 803en
dc.subjectVDP::Medisinske Fag: 700::Helsefag: 800::Epidemiologi medisinsk og odontologisk statistikk: 803en
dc.titleBody mass index at age 20 and subsequent childbearing: The Adventist Health Study-2.en
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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