| Number of GDM in the second pregnancy | Unadjusted OR (95% CI) | Adjusted*# | ||||
---|---|---|---|---|---|---|---|
OR (95% CI) | β value | SE | Wald χ2 | P | |||
All women* | |||||||
 Gestational weight gain during the second pregnancy | |||||||
  Inadequate | 485 | 1.65(1.41~1.91) | 1.67(1.43~1.93) | 0.51 | 0.08 | 44.49 | < 0.001 |
  Adequate | 365 | 1 | 1 | / | / | / | / |
  Excessive | 248 | 1.04(0.87~1.23) | 1.04(0.88~1.24) | 0.05 | 0.09 | 0.26 | 0.610 |
BMI (kg/m2) in the first pregnancy < 25# | |||||||
 Gestational weight gain during the second pregnancy | |||||||
  Inadequate | 374 | 1.69(1.42~2.00) | 1.69(1.42~2.01) | 0.53 | 0.09 | 35.61 | < 0.001 |
  Adequate | 274 | 1 | 1 | / | / | / | / |
  Excessive | 189 | 1.06(0.87~1.30) | 1.09(0.89~1.34) | 0.09 | 0.10 | 0.71 | 0.401 |
BMI in the first pregnancy ≥25# | |||||||
 Gestational weight gain during the second pregnancy | |||||||
  Inadequate | 111 | 1.53(1.13~2.07) | 1.54(1.14~2.09) | 0.43 | 0.16 | 7.72 | 0.005 |
  Adequate | 91 | 1 | 1 | / | / | / | / |
  Excessive | 59 | 0.96(0.67~1.36) | 0.94(0.66~1.34) | −0.06 | 0.18 | 0.10 | 0.752 |