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Table 1 Characteristics of iLiNS-DYAD trial participants at ≤20 weeks gestation who were included in or excluded from the current cohort study

From: Increased risk of preterm delivery with high cortisol during pregnancy is modified by fetal sex: a cohort study

 

Mean ± SD or n/n (%)

 

Included

(n = 783)

Excluded

(n = 537)

p

Maternal age (y)

26.6 ± 5.4

26.9 ± 5.7

0.406

Nulliparous (%)

260/783 (33.2%)

186/537 (34.6%)

0.589

Total school years completed (y)

7.6 ± 3.4

7.7 ± 3.9

0.709

Married (%)

720/783 (92.0%)

504/537 (93.9%)

0.263

Gestational age (wk)

16.1 ± 3.0

16.1 ± 3.7

0.851

Male fetus (%)a

372/783 (47.5%)

189/376 (50.3%)

0.379

Twin pregnancy (%)b

15/783 (1.9%)

7/457 (1.5%)

0.619

BMI (kg/m2)

24.8 ± 4.6

24.8 ± 4.5

0.939

Anemia (%, Hb < 100 g/L)

112/783 (14.3%)

73/537 (13.6%)

0.715

Positive malaria test (%)

74/783 (9.5%)

60/536 (11.2%)

0.303

Cortisol, nmol/L

4.9 ± 2.7

4.5 ± 2.2

0.147

AGP, g/L

0.65 ± 0.21

0.65 ± 0.22

0.916

CRP, mg/L

7.2 ± 11.5

6.6 ± 11.7

0.336

  1. aBased on infant sex at birth; missing data among excluded women (n = 161) due to either miscarriage or loss to follow-up
  2. bBased on ultrasound or determined at birth; missing data among excluded women (n = 80) due to either miscarriage or loss to follow-up