Table 2 Multivariate logistic regression analysis of preeclampsia in the second pregnancy

Old age (≥35 years)

1.67

1.31–2.11

Preeclampsia in the first pregnancy

16.90

14.93–19.12

Multiple pregnancies in the first pregnancy

0.56

0.27–1.15

Multiple pregnancies in the second pregnancy

3.98

2.84–5.56

Prior cesarean section

1.26

1.13–1.41

Interval between the 2 pregnancies

 1 year

1

 2 years

0.80

0.68–0.95

 3 years

0.97

0.81–1.15

 4 years

1.48

1.24–1.77