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Table 5 Odds ratios of the weight retention at six weeks postpartum after the first pregnancy associated with interpregnancy BMI change

From: Weight retention at six weeks postpartum and the risk of gestational diabetes mellitus in a second pregnancy

  Interpregnancy BMI change Unadjusted OR (95% CI) Adjusted OR (95% CI)
< 1 ≥1
The weight retention at six weeks postpartum after the first pregnancy
 Lost 1.0 or more 8 10 2.23(0.85~5.88) 2.23(0.89~6.13)
 Remain stable (±1.0) 157 88 1 1
 Gained 1.0–1.9 773 468 1.08(0.81~1.44) 1.07(0.80~1.42)
 Gained 2.0–2.9 1579 908 1.03(0.78~1.35) 1.00(0.76~1.32)
 Gained 3.0 or more 1345 1093 1.45(1.10~1.90) 1.42(1.08~1.87)
  1. BMI, Body mass index; OR, Odds ratio
  2. Model adjusted for interpregnancy interval, BMI in the first pregnancy, gestational diabetes mellitus, and gestational weight gain during the second pregnancy