Table 1.

Clinical characteristics in 3 study groups

	Severe Preeclampsia (n=903)	Eclampsia (n=123)	HELLP syndrome (n=196)	P	P1b	P2b	P3b
Age (year, median, Q1–Q3)	27 (24–32)	25 (22–29)	28 (25–33)	<0.0001a	<0.0001	0.144	<0.0001
Gravidity (median, Q1–Q3)	2 (1–3)	1 (1–2)	2 (1–3)	0.0002a	0.0003	0.355	0.0003
Parity (median, Q1–Q3)	0 (0–2)	0 (0–1)	1 (0–2)	0.0006a	0.0012	0.358	0.0009
Nulliparity, %	49.8	35	53.1	0.004*

^aAccording to the Kruskal–Wallis test (triple comparison) P<0.05

^bMann-Whitney U test P1=Severe Preeclampsia versus Eclampsia, P2=Severe preeclampsia versus HELLP Syndrome, P3=Eclampsia versus HELLP Syndrome Significant p value after Bonferroni correction <0.017

^*According to χ² test for trend