Table 2. Demographics.

	Training data			Testing data			Overall
Characteristic	PE	control	p value	PE	control	p value	p value
	n = 21 (50%)	n = 21 (50%)		n = 10 (50%)	n = 10 (50%)
Ethnicity			0.512			0.164	0.286
African American	6 (28.6%)	5 (23.8%)		1 (10%)	4 (40%)
Asian	2 (9.5%)	0 (0%)		0 (0%)	0 (0%)
Hispanic	11 (52.4%)	15 (71.4%)		7 (70%)	6 (60%)
Other	2 (9.5%)	1 (4.8%)		2 (20%)	0 (0%)
Age (year)
median (IQR)	24 (19,32)	24 (20,29)	0.95	23 (20,32)	24 (19,26)	1	0.916
Week of gestation
median (IQR)	36 (33,37)	33 (28,36)	0.077	33.5 (28,37)	37.5 (35,38)	0.087	0.772