Skip to main content

Table 4 Odds ratios of BMI change at six weeks postpartum after the first pregnancy associated with GDM in the second pregnancy

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

  Number of GDM in the second pregnancy Unadjusted OR (95% CI) Adjusted OR (95% CI)*#
All women*
 The weight retention at six weeks postpartum after the first pregnancy
  Lost 1.0 or more 3 1.61(0.44~5.94) 1.53(0.41~5.63)
  Remain stable (±1.0) 27 1 1
  Gained 1.0–1.9 181 1.38(0.90~2.12) 1.43(0.93~2.20)
  Gained 2.0–2.9 260 0.94(0.62~1.43) 1.00(0.66~1.53)
  Gained 3.0 or more 627 2.80(1.86~4.21) 2.95(1.95~4.45)
BMI in the first pregnancy < 25#
BMI change at six weeks postpartum after the first pregnancy
  Lost 1.0 or more 2 2.21(0.43~11.40) 2.29(0.44~11.78)
  Remain stable (±1.0) 20 1 1
  Gained 1.0–1.9 135 1.40(0.85~2.32) 1.41(0.85~2.32)
  Gained 2.0–2.9 205 0.98(0.60~1.60) 0.99(0.61~1.62)
  Gained 3.0 or more 475 2.71(1.68~4.37) 2.73(1.69~4.41)
BMI in the first pregnancy ≥25#
 BMI change at six weeks postpartum after the first pregnancy
  Lost 1.0 or more 1 1.13(0.12~10.37) 1.12(0.12~10.36)
  Remain stable (±1.0) 7 1 1
  Gained 1.0–1.9 46 1.31(0.57~3.04) 1.31(0.57~3.04)
  Gained 2.0–2.9 55 0.81(0.35~1.85) 0.81(0.35~1.86)
  Gained 3.0 or more 152 3.03(1.36~6.75) 3.02(1.35~6.76)
  1. BMI, Body mass index; GDM, Gestational diabetes mellitus; OR, Odds ratio
  2. * Model adjusted for interpregnancy interval, BMI in the first pregnancy, interpregnancy BMI change, and gestational weight gain during 2nd pregnancy
  3. # Model adjusted for interpregnancy interval, interpregnancy BMI change, and gestational weight gain during 2nd pregnancy