Table 2.
BMI (kg/m2) | Rate (%) | Odds Ratio (95% CI) |
---|---|---|
18.5–<25 | 0.17 | |
25–<30 | 0.21 | 1.26 (1.15–1.37) |
30–<35 | 0.27 | 1.58 (1.39–1.79) |
35–<40 | 0.35 | 2.01 (1.66–2.45) |
40+ | 0.52 | 2.99 (2.28–3.92) |
Adapted from Cnattingius S, Villamor E, Johansson S, et al. Maternal obesity and risk of preterm delivery. JAMA 2013;309(22):2364; with permission.