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Optimal maternal weight gain during singleton pregnancy

L A Bracero1, D W Byrne

  • 1Department of Obstetrics and Gynecology, Maimonides Medical Center, Brooklyn, NY, USA.

Gynecologic and Obstetric Investigation
|August 6, 1998
PubMed
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Optimal maternal weight gain during pregnancy varies by pre-pregnancy body mass index (BMI). This study identified specific weight gain ranges associated with the best perinatal outcomes for underweight, average, and overweight/obese women.

Area of Science:

  • Maternal-Fetal Medicine
  • Obstetrics
  • Public Health Nutrition

Background:

  • Current recommendations for maternal weight gain during pregnancy may not be universally optimal.
  • Pre-pregnancy body mass index (BMI) is a significant factor influencing pregnancy outcomes.
  • Adverse perinatal outcomes are associated with both inadequate and excessive gestational weight gain.

Purpose of the Study:

  • To determine optimal maternal weight gain ranges for singleton pregnancies.
  • To evaluate the association between gestational weight gain and perinatal outcomes.
  • To compare findings with existing Institute of Medicine recommendations.

Main Methods:

  • Historical prospective study design.
  • Analysis of 20,971 singleton pregnancies without congenital anomalies (1987-1993).

Related Experiment Videos

  • Adjustment for pre-pregnancy body mass index (BMI) to determine weight gain associated with optimal perinatal outcome.

    • Main Results:

    • Gestational weight gain significantly impacts perinatal outcomes, independent of confounding factors.
    • Optimal weight gain ranges varied by pre-pregnancy BMI: 31-40 lbs (average), 36-40 lbs (underweight), 26-30 lbs (overweight/obese).
    • 9.4% of the study population experienced adverse perinatal outcomes.

    Conclusions:

    • Maternal weight gain during pregnancy requires careful monitoring and individualized recommendations based on pre-pregnancy BMI.
    • Further research, including randomized controlled trials, is needed to validate these findings and inform updated clinical guidelines.
    • Optimizing gestational weight gain may improve perinatal and maternal outcomes.