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Increasing pre-pregnancy body mass index is predictive of a progressive escalation in adverse pregnancy outcomes



Increasing pre-pregnancy body mass index is predictive of a progressive escalation in adverse pregnancy outcomes



Journal of Maternal-Fetal and Neonatal Medicine 25(9): 1635-1639



To evaluate the association between pre-pregnancy body mass index (BMI) and adverse pregnancy outcomes using a large administrative database. Retrospective cohort study of California women delivering singletons in 2007. The association between pre-pregnancy BMI category and adverse outcomes were evaluated using multivariate logistic regression. Among 436,414 women, increasing BMI was associated with increasing odds of adverse outcomes. Obese women (BMI=30-39.9) were nearly 3 x more likely to have gestational diabetes (OR=2.83, 95% CI=2.74-2.92) and gestational hypertension/preeclampsia (2.68, 2.59-2.77) and nearly twice as likely to undergo cesarean (1.82, 1.78-1.87), when compared to normal BMI women (BMI=18.5-24.9). Morbidly obese women (BMI ≥ 40) were 4x more likely to have gestational diabetes (4.72, 4.46-4.99) and gestational hypertension/preeclampsia (4.22, 3.97-4.49) and nearly 3 x as likely to undergo cesarean (2.60, 2.46-2.74). There is a strong association between increasing maternal BMI and adverse pregnancy outcomes. This information is important for counseling women regarding the risks of obesity in pregnancy.

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Accession: 053808909

Download citation: RISBibTeXText

PMID: 22185383

DOI: 10.3109/14767058.2011.648970


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