Legends for Figures and Tables
Table 1. Characteristics of the 5,986 mother-newborn pairs in the present study
Table 2. Odds ratios and 95% confidence intervals for preterm birth according to maternal ApoA-1, ApoB and ApoB/ApoA-1.
Table 3. Subgroup analyses of the associations between ApoB, ApoB/ApoA-1 and preterm birth, stratified by pre-pregnancy BMI, maternal age and parity.
Table 4. Sensitivity analyses: odds ratios and 95% confidence intervals for preterm birth according to maternal serum ApoA-1, ApoB and ApoB/ApoA-1.
Figure 1. Flowchart of the study population.
Figure 2. Relationship between ApoA-1, ApoB, ApoB/ApoA-1 and preterm birth, fitted by restricted cubic splines. Odds ratio were estimated using logistic regression model adjusting for maternal pre-pregnancy BMI, age at delivery, parity, delivery mode, gestational diabetes mellitus and infant sex. The solid line represents odds ratios and the dash area are 95% confidence intervals. Four knots were located at 5th, 35th, 65th 95th percentiles of ApoA-1, ApoB, ApoB/ApoA-1.