Final prediction model for SGA birth (training data set, N=1100), Guangdong, China, 2009–2011
| Characteristics | OR (95% CI) | AUROC (95% CI) | H-L test p value |
|---|---|---|---|
| SHS exposure (>0 vs 0 min/day) | 1.58 (1.12 to 2.25) | 0.698 (0.660 to 0.737) | 0.782 |
| Prepregnancy BMI (kg/m2) | 0.86 (0.80 to 0.92) | ||
| GWG velocity (kg/week) | 0.18 (0.08 to 0.37) | ||
| Gestational diabetes | 0.20 (0.06 to 0.67) | ||
| Gestational hypertension | 2.95 (1.61 to 5.41) | ||
| Third trimester BPD-Zscore | 0.70 (0.59 to 0.82) |
AUROC, area under the receiver operating curve; BMI, body mass index; BPD, biparietal diameter; GWG, gestational weight gain; H-L test, Hosmer-Lemeshow test; SGA, small-for-gestational-age; SHS, secondhand smoke.