Table 1 Demographics and patient characteristics.

From: Syncytiotrophoblast extracellular microvesicle profiles in maternal circulation for noninvasive diagnosis of preeclampsia

 

Case (n = 21)

Control (n = 23)

P value

Maternal age – mean ± SD (years)

29.7 ± 8.2

26.4 ± 5.1

0.12

Race – n (%)

  African American

19 (90.5)

20 (87.0)

0.71

  White

2 (9.5)

3 (13.0)

Body Mass Index - mean ± SD (kg/m2)

31.2 ± 7.5

25.6 ± 6.2

0.01

Gestational age at blood draw* - mean ± SD (weeks)

31.3 ± 4.4

33.2 ± 4.0

0.63

Parity – median [IQR]

0 [0–1]

1 [0–1]

0.46

Tobacco use – n (%)

0 (0)

2 (8.7)

0.43

Chronic HTN – n (%)

12 (57.1)

1 (4.3)

0.02

Postnatal outcomes^

Gestational age at delivery – median [IQR] (weeks)

32 [29–36]

39 [38–40]

P < 0.001

Birth weight (g) - mean ± SD

1720 ± 993

3343 ± 641

P < 0.001

  1. *Equates to the gestational age of onset of preeclampsia for the cases.
  2. ^By definition, all cases were delivered preterm.
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