| Unadjusted | Model A | Model B | Model C |
---|
OR (95% CI) | AOR (95% CI) | AOR (95% CI) | AOR (95% CI) |
---|
Preterm birth |
Control group | 1 | 1 | 1 | 1 |
HBV group | 1.250(0.976–1.600) | 1.124(0.857–1.475) | 1.070(0.802–1.427) | 1.031(0.771–1.378) |
Early preterm birth |
Control group | 1 | 1 | 1 | 1 |
HBV group | 2.024(1.262–3.248) | 1.820(1.096–3.021) | 1.770(1.048–2.991) | 1.770(1.046–2.997) |
- Model A: adjustment was made for age, pre-pregnancy BMI, prenatal BMI, gravida, parity and number of inspections
- Model B: adjustment was made for age, pre-pregnancy BMI, prenatal BMI, gravida, parity, number of inspections, previous preterm birth history, uterine malformation, abortion history and ICP
- Model C: adjustment was made for the variables used in Model B and for ALT, AST, TG, and LDH