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Table 1 Cohort characteristics for the HIF3A.1 and HIF3A.2 samples

From: Early-life determinants of hypoxia-inducible factor 3A gene (HIF3A) methylation: a birth cohort study

Characteristics

HIF3A.1 sample n = 490

HIF3A.2 sample n = 938

Maternal

 

Mean (SD)

Mean (SD)

 Age at conception (years)

31.7 (4.4)

31.4 (4.7)

 Pre-pregnancy BMI (kg/m2)

25. (5.1)

25.3 (5.3)

 

n (%)

n (%)

 Smoked during pregnancy (any)

59 (12.0)

146 (15.6)

 Gestational diabetes

17 (3.9)

40 (5.0)

 Pre-eclampsia

17 (3.5)

27 (2.9)

Infant

 

Mean (SD)

Mean (SD)

 Gestational age (weeks)

39.5 (1.4)

39.5 (1.4)

 Birth weight (g)

3548.5 (500.0)

3559.6 (496.3)

 Birth weight z-score

0.4 (0.9)

0.4 (0.9)

 Triceps+subscapular sum (mm)

9.7 (2.1)

9.9 (2.2)

 

n (%)

n (%)

 Sex (male)

241 (49.2)

482 (51.4)

  1. SD standard deviation