Pregnancy weight gain charts for obese and overweight women.

  • Hutcheon J
  • Platt R
  • Abrams B
 et al. 
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OBJECTIVE: Reference charts for classifying and monitoring pregnancy weight gain in severely obese women do not exist. The goal was to construct pregnancy weight-gain-for-gestational-age z-score charts for overweight and obese mothers, stratified by severity of obesity. METHODS: Serial weight gain measurements were abstracted from 1047, 1202, 1267, and 730 overweight, class I, II, and III obese women, respectively, delivering uncomplicated term pregnancies at Magee-Womens Hospital in Pittsburgh, PA. Multi-level linear regression models were used to express serial weight gain measurements as a function of gestational age. RESULTS: There were a median [interquartile range] of 11 [9-12] and 11 [9-13] serial weight measurements for overweight and obese (class I, II, and III) women, respectively. The rate of weight gain was minimal until 15-20 weeks and then increased in a slow, linear manner until term. The slope of weight gain flattened as pre-pregnancy BMI increased. Charts were created describing the mean, standard deviation, and select percentiles of weight gain in class I, II, and III obese and overweight pregnancies. CONCLUSIONS: These charts are an innovative tool for studying the association between gestational weight gain and adverse pregnancy outcomes.

Author-supplied keywords

  • Adult
  • Body Mass Index
  • Cohort Studies
  • Female
  • Gestational Age
  • Humans
  • Obesity
  • Pregnancy
  • Pregnancy Complications
  • Pregnancy Outcome
  • Reference Values
  • Weight Gain
  • physiology
  • physiopathology
  • prevention & control

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  • Jennifer A Hutcheon

  • Robert W Platt

  • Barbara Abrams

  • Katherine P Himes

  • Hyagriv N Simhan

  • Lisa M Bodnar

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