Table 3 Stratification analyses by maternal age for the likelihood for total and recurrent spontaneous abortion (SA) of body mass index (BMI) at 18–20 years old in the Health Examinee Study (HEXA), 2004-20121
BMI (kg/m2) | Maternal age | |||||
|---|---|---|---|---|---|---|
SA at ≤25 years | SA at 26–28 years | SA at >28 years | ||||
(N=3,980) | (N=3,977) | (N=4,321) | ||||
N (%) | OR2 (95% CI) | N (%) | OR2 (95% CI) | N (%) | OR2 (95% CI) | |
<18.5 | 636 (16.0) | 1.07 (0.97–1.17) | 768 (19.3) | 1.17 (1.08–1.27) | 844 (19.5) | 1.11 (1.02–1.21) |
18.5–22.9 | 2,765 (69.5) | 1.00 (ref) | 2,761 (69.4) | 1.00 (ref) | 2,989 (69.2) | 1.00 (ref) |
23–24.9 | 427 (10.7) | 1.02 (0.91–1.32) | 356 (8.95) | 0.92 (0.82–1.03) | 376 (8.7) | 0.93 (0.83–1.04) |
≥25 | 153 (3.8) | 1.22 (1.02–1.45) | 92 (2.3) | 0.82 (0.66–1.01) | 112 (2.6) | 0.96 (0.79–1.17) |