| Pre-pregnancy body mass index and weight gain during pregnancy in relation to preterm delivery subtypes. | |
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MedLine Citation:
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PMID: 18446533 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Associations between preterm delivery (PTD) and pre-pregnancy body mass index (BMI) and pregnancy weight gain may differ across outcome subtypes. METHODS: The authors analyzed data from 2,468 cohort participants in western Washington State, USA (1996-2005) and examined pre-pregnancy BMI and weight gain rate from pre-pregnancy to 18-22 weeks' gestation in relation to spontaneous PTD after preterm labor, spontaneous PTD after preterm premature rupture of membranes (PPROM), and indicated PTD. RESULTS: Each 5 kg/m(2) BMI increase was associated with indicated PTD (adjusted odds ratio [OR] 1.71, 95% confidence interval [CI] 1.40-2.06). The association weakened somewhat after adjustment for hypertension and diabetes before and/or during pregnancy (5 kg/m(2) adjusted OR, 1.40; 95% CI, 1.12-1.75). Associations with spontaneous PTD and PPROM were weaker (5 kg/m(2) adjusted ORs, 0.90 and 1.14, respectively). Weight gain was associated with indicated delivery among women with normal BMI (0.1 kg/week adjusted OR, 1.22; 95% CI, 1.02-1.45) but not among overweight or obese women (adjusted OR, 1.02; 95% CI, 0.87-1.20). Weight gain was inversely associated with spontaneous PTD (0.1 kg/week adjusted OR, 0.87; 95% CI, 0.77-0.99) and not strongly associated with PPROM (adjusted OR, 1.03; 95% CI, 0.90-1.17). CONCLUSIONS: Pre-pregnancy overweight increases indicated PTD risk independently of hypertension and diabetes. High early pregnancy weight gain increases indicated PTD risk in women with a normal BMI. |
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Authors:
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Carole B Rudra; Ihunnaya O Frederick; Michelle A Williams |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Acta obstetricia et gynecologica Scandinavica Volume: 87 ISSN: 1600-0412 ISO Abbreviation: Acta Obstet Gynecol Scand Publication Date: 2008 |
Date Detail:
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Created Date: 2008-04-30 Completed Date: 2008-05-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370343 Medline TA: Acta Obstet Gynecol Scand Country: Denmark |
Other Details:
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Languages: eng Pagination: 510-7 Citation Subset: IM |
Affiliation:
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Center for Perinatal Studies, Swedish Medical Center, Seattle, WA, USA. cbrudra@buffalo.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Body Mass Index* Cohort Studies Diabetes Mellitus / epidemiology Female Fetal Membranes, Premature Rupture / epidemiology Humans Hypertension / epidemiology Infant, Newborn Infant, Premature Logistic Models Middle Aged Pregnancy Premature Birth / epidemiology* Prospective Studies Socioeconomic Factors Washington / epidemiology Weight Gain* |
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