The Effects of Vitamin D Supplement on Prevention of Recurrence of Preeclampsia in Pregnant Women with a History of Preeclampsia

Table 3

Comparison of preeclampsia incidence between intervention group and control group.

Group	Nonpreeclampsia	Preeclampsia	value
Control group	50 (69.4%)	22 (30.6%)	0.036
Intervention group	59 (84.3%)	11 (15.7%)
Total	109 (76.8%)	33 (23.2%)

value based on Chi-square tests; value < 0.05 is statistically significant.