Table 2. Clinical characteristics of subjects with normal and preeclamptic pregnancies.

	Initial discovery set(HTS)			Validation set
	Control (n = 9)	Preeclampsia (n = 9)	p value	Control (n = 20)	Preeclampsia (n = 22)	P value
Maternal age (y)	28.3 ± 1.4	32.1 ± 6.9	0.16	30.5 ± 4.4	30.4 ± 4.7	0.329
Gestational age (days)	280.3 ± 3.9	244.3 ± 21.3	<0.01	277.1 ± 7.2	232.5 ± 25.2	<0.01
Birthweight (g)	3694.4 ± 584.2	2243 ± 941.1	<0.01	3502.9 ± 395.9	1991.8 ± 966.2	<0.01
BMI (kg/m2)	29.5 ± 3.2	30.8 ± 3.2	0.23	29.5 ± 3.1	31.0 ± 5.9	0.45
Proteinuria (g/24 h)	Not detected	3.3 ± 3.5	<0.01	Not detected	4.7 ± 3.2	<0.01
SBP (mm/Hg)	120.9 ± 19.7	161.5 ± 18.2	<0.01	123.6 ± 11.0	164.1 ± 23.5	<0.01
DBP (mm/Hg)	79.0 ± 10.0	109.0 ± 12.4	<0.01	79.5 ± 9.3	112.4 ± 16.6	<0.01