Preterm birth | Model 1a | Model 2b | Model 3c |
|---|
OR (95%CI) | P | OR (95%CI) | P | OR (95%CI) | P |
|---|
Extremely preterm | 0.68 (0.53–0.87) | 0.003 | 0.68 (0.53–0.88) | 0.003 | 1.45 (0.86–2.42) | 0.161 |
Very preterm | 1.06 (0.92–1.23) | 0.425 | 1.06 (0.92–1.24) | 0.415 | 1.21 (0.96–1.52) | 0.107 |
Moderate or late preterm | 1.31 (1.23–1.39) | < 0.001 | 1.33 (1.26–1.41) | < 0.001 | 1.27 (1.18–1.37) | < 0.001 |
- GDM Gestational diabetes mellitus, vAMA Very advanced maternal age, OR Odds ratio, CI Confidence interval, WIC the Special Supplemental Nutrition Program for Women, Infants, and Children
- a Model 1 was an univariate model;
- b Model 2 adjusted for maternal age at delivery, race, education, and newborn sex;
- c Model 3 adjusted for maternal age at delivery, race, education, newborn sex, delivery weight, smoking status 2nd trimester, hypertension eclampsia, gestational hypertension, pre-pregnancy hypertension, number of prenatal visits, WIC, plurality, prior other terminations, total birth order, birth weight, pregnancy method, and method of delivery
