TABLE 2.
Effect of interpregnancy weight change on the risk of cesarean delivery during the subsequent pregnancy among women with gestational diabetes and vaginal delivery at their baseline pregnancy
| Number of Deliveries | Odds Ratios of Cesarean Delivery at Subsequent Birth | ||||||
|---|---|---|---|---|---|---|---|
| Interpregnancy weight change1 | Total | Vaginal (%) | Cesarean (%) | OR2 | 95% CI | Adjusted OR3,4,5 | 95% CI |
| Weight stable | 1,394 | 94.8 | 5.2 | 1.0 | 1.0 | ||
| Weight loss | 281 | 94.3 | 5.7 | 1.09 | 0.63-1.91 | 0.55 | 0.28-1.10 |
| Weight gain | 906 | 90.4 | 9.6 | 1.92 | 1.39-2.66 | 1.70 | 1.16-2.49 |
Groups: weight stable (± 10 lbs), weight loss (greater than 10 lbs) and weight gain (greater than 10 lbs)
Unadjusted
Adjusted for mother’s age, mother’s education, mother’s race/ethnicity, mother’s smoking during the subsequent pregnancy, pre-pregnancy weight of the baseline pregnancy, weight gain during the baseline and subsequent pregnancy, interbirth interval, year of birth (subsequent pregnancy)
Missing data for 155weight stable women, 27 weight loss women, and 95 weight gain women
Percentage of those who had a subsequent cesarean delivery: 5.3% of women who were weight-stable, 4.7% of women who lost weight, and 9.7% of women who gained weight