Table 1.

Patient and pregnancy data.

	Stanford cohort		Detroit cohort
Demographics	Preeclampsia (n = 18)	Controls (n = 18)	Preeclampsia (n = 76)	Controls (n = 90)
Age (years)	32.0 [27.3–37.5]	30.0 [29.0–33.5]	22.0 [21.0–29.0]	24.0 [21.0–27.8]
Body mass index (kg/m2)	27.9 [22.3–31.3]	22.3 [19.9–23.7]	30.0 [24.8.0–36.2]	26.5 [22.8–33.2]
Race
African American	1	0	72	84
Asian	2	0	0	0
Caucasian	14	18	4	6
Unknown	1	0	0	0
Pregnancy
Gravity	2 [1–2]	2 [1–3]	2 [1–4]	3 [2–5]
Parity (nulliparity)	7	8	32	26
Preeclampsia (mild/severe)
Early preeclampsia	3/2
Late preeclampsia	5/8		48/28
Gestational age at delivery
Early preeclampsia	31.3 [30.1–32.1]
Late preeclampsia	38.3 [37.1–39.6]		38.7 [37.7–39.4]
All		39.8 [39.1 −40.8]		39.4 [39.0–40.4]

Reported are the median and interquartile range or absolute numbers.