Crude and adjusted OR for emotional distress and early and late preterm birth.
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*cases with covariates missing are excluded. †adjusted for maternal age, educational level, marital status, smoking, pre-pregnancy body mass index, late medical risk, history of spontaneous abortion, and neonate gender. ‡emotional distress at 17 and 30 weeks are dichotomized variables, mean score ≥2 = 1. §compared to no emotional distress at 30 weeks. ||OR not calculated because the exposure was measured simultaneously with the outcome variable.
创建时间：
2014-07-07
