Gestational Weight Gain: Association with Adverse Pregnancy Outcomes

Karen E. Hannaford, Methodius G. Tuuli, Linda Odibo, George A. Macones, Anthony O. Odibo

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Background It is unclear how adherence to the Institute of Medicine's (IOM) guidelines for weight gain affects pregnancy outcomes. Objective We investigated how weight gain outside the IOM's recommendations affects the risks of adverse pregnancy outcomes. Study Design We performed a secondary analysis of a prospective cohort study including singleton, nonanomalous fetuses. The risks of small for gestational age (SGA), macrosomia, preeclampsia, cesarean delivery, gestational diabetes, or preterm birth were calculated for patients who gained weight below or above the IOM's recommendations based on body mass index category. A time-to-event analysis was performed to account for gestational age at delivery. A Cox proportional model was fit to estimate hazard ratios accounting for possible confounders. Results Women who gained weight below recommendations were 2.5 times more likely to deliver SGA and twice as likely to deliver preterm. Normal-weight patients who gained below recommendations were 2.5 times more likely to deliver SGA and twice as likely to deliver preterm. Obese patients who gained inadequate weight were 2.5 times more likely to deliver SGA. Conclusion Among normal-weight patients, adhering to IOM recommendations may prevent growth abnormalities and preterm delivery. Among obese patients, a minimum weight gain requirement may prevent SGA infants.

Original languageEnglish
Pages (from-to)147-154
Number of pages8
JournalAmerican journal of perinatology
Volume34
Issue number2
DOIs
StatePublished - Jan 1 2017

Keywords

  • BMI
  • adverse pregnancy outcomes
  • gestational weight gain
  • institute of medicine

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    Hannaford, K. E., Tuuli, M. G., Odibo, L., Macones, G. A., & Odibo, A. O. (2017). Gestational Weight Gain: Association with Adverse Pregnancy Outcomes. American journal of perinatology, 34(2), 147-154. https://doi.org/10.1055/s-0036-1584583