Table 3: Interval between pregnancies*.


Interval between pregnancies Normal pregnancies Mild preeclampsia Severe preeclampsia

n = 160 % n = 23 % n = 13 %
<1 0 0 0 0 0 0
1-1,9 8 5 0 0 0 0
2-2,9 33 20,6 5 21,7 2 15,4
3-3,9 33 20,6 6 26,1 1 7,7
4-4,9 28 17,5 0 0 1 7,7
5-5,9 21 13,1 1 4,3 1 7,7
6-6,9 14 8,8 2 8,7 0 0
7-7,9 6 3,8 0 0 0 0
8-8,9 5 3,1 4 17,4 1 7,7
9-9,9 4 2,5 1 4,3 2 15,4
≥10 8 5.0 4 17,4 5 38,4
Mean value of interval between pregnancies** 4.24±2.39 5.96±4.02 p1.8in|8.08±3.48
95% CI for mean 3.816–4.659 4.845–7.068 6.598–9.556

*- The significant difference in the frequency of the category of time between the pregnancies was tested with the ANOVA; n- number of pregnant; **- data are expressed as mean ± standard deviation