Research Article
Baseline Levels of Serum Progesterone and the First Trimester Pregnancy Outcome in Women with Threatened Abortion: A Retrospective Cohort Study
Table 2
Results of univariate multivariate analysis using binary logistic regression and marginal structural model.
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Nonadjusted model: we used basal progesterone, and no covariables were adjusted. Fully adjusted model: we used basal progesterone and adjusted for maternal age, BMI, smoking, drinking, gestational week, marital status, basal β-HCG (log10), gestity, parity, abortion, embryo visualization, cardiac movement visualization, medical history, and use of progesterone. Marginal structural model: we used serial progesterone and adjusted for maternal age, BMI, smoking, drinking, gestational week, marital status, serial β-HCG (log10), gestity, parity, abortion, embryo visualization, cardiac movement visualization, medical history, and use of progesterone. |