Skip to main content

Table 1 Comparison of study sample with the whole cohort

From: Genome-wide DNA methylation at birth in relation to in utero arsenic exposure and the associated health in later life

 

Study sample (n = 64)

All mothers and their newborn (n = 299)

 

Variables

Mean ± SD. or number(%) or Median(IQR)

Mean ± SD. or number(%) or Median(IQR)

p-value

Maternal Characteristics

Age (Years)

28.9 ± 4.8

28.3 ± 4.2

0.32

Pre-pregnant BMI (kg/m2)

20.5 ± 2.6

25.6 ± 3.9

1.92 × 10−23

Arsenic metabolites

μg g−1 creaa

   

Total arsenic

23.19(21.2)

22.26(28.51)

0.52

Inorganic arsenic

0.83(0.92)

0.79(1.11)

0.9

MMA

0.40(1.48)

0.46(1.85)

0.7

DMA

20.73(18.23)

20.01(24.82)

0.52

Maternal Education

  

5.12 × 10−15

 ≤high school

3 (4.7%)

132(44%)

 

 high school +2 years

22(34.3%)

117(39%)

 

 ≥high school +4 years

39(61%)

50(17%)

 

Newborns

 Gestational Age (weeks)

39 ± 1.2

39 ± 2.8

1

  1. a: μg g−1 crea: μg per g creatinine