Gestational weight gain and unplanned or emergency cesarean delivery in the United States.

BACKGROUND: In the United States, the rates of cesarean delivery are well above the World Health Organization recommended target. Although obesity is a widely established risk factor for cesarean delivery, there is limited population-based research that examines the relationship between gestational weight gain and cesarean delivery.

OBJECTIVE: To determine the association between gestational weight gain and unplanned or emergency cesarean delivery.

METHODS: We examined 2107 mothers from the Infant Feeding Practices Study II 2005-2007. The Institute of Medicine's current guidelines were used to define categories of gestational weight gain: inadequate (less than the recommended guideline), adequate (within the recommended guideline) and excessive (above the recommended guideline).

FINDINGS: Approximately 49.3% and 13.6% of the participants had excessive weight gain and unplanned or emergency cesarean delivery, respectively. A Greater proportion of women with excessive weight gain had an unplanned or emergency cesarean delivery followed by women with adequate and inadequate weight gain, respectively (17.8%, 10.0%, 8.8%; p<0.001). In the multivariable model, compared to women with adequate weight gain, the odds of unplanned or emergency cesarean delivery were higher among women with excessive weight gain (OR 1.56, 95% CI 1.07-2.27, p=0.020).

DISCUSSION: Women with excessive gestational weight gain are more likely to experience an unplanned or emergency cesarean delivery, which increases the risk for poor maternal-infant health outcomes.

CONCLUSION: It is critical to identify populations at increased risk of unplanned or emergency cesarean delivery and provide preconception and prenatal counseling to achieve and maintain the recommended weight gain for optimal maternal-infant health outcomes.