Table 1 Cohort characteristics

From: Preterm birth is associated with xenobiotics and predicted by the vaginal metabolome

 

sPTB

TB

Difference (P value)

N

80

152

 

Race (N (%))

  

0.417

Black

57 (71.25%)

116 (76.3%)

0.568

White

21 (26.25%)

30 (19.7%)

0.331

Other

2 (2.5%)

6 (4%)

0.666

Nulliparous (N (%))

29.0 (36.2%)

55.0 (36.2%)

0.894

PTB history (N (%))

34 (42.5%)

28 (19.2%)

0.0003

GA at delivery (median weeks (range))

34 (21–36)

39 (38–39)

<0.0001

BMI (kg m−2 mean ± s.d.)

30.1 ± 7.8

30.6 ± 7.2

0.65

Age (years mean ± s.d.)

29 ± 6

28 ± 6

0.28

  1. GA, gestational age; P, two-sided Fisher’s exact or Mann–Whitney U test. Bold indicates P < 0.05.