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Table 1 Summary of the analytic sample

From: Technical variability across the 450K, EPICv1, and EPICv2 DNA methylation arrays: lessons learned for clinical and longitudinal studies

 

Total DCHS sample

DCHS analytic subsample

p value

N

1143

30

 

Sex

  

1.00

 Female

48.7%

50.0%

 

 Male

51.3%

50.0%

 

Ancestry

  

0.027

 Black African

55.3%

33.3%

 

 Mixed Ancestry

44.6%

66.7%

 

Education

  

0.08

 Less than secondary

60.8%

43.3%

 

 Secondary or greater

39.2%

56.7%

 

Prenatal smoking

  

0.42

 Exposed

71.7%

63.3%

 

 Unexposed

28.3%

36.7%

 

Age at DNAm collection (years)

 

5.06 (0.054)

 

 Maternal age at birth (years)

26.9 (5.72)

26.7 (6.62)

0.88

 Birthweight (grams)

3019 (611)

3121 (667)

0.41

 Parity (number)

1.04 (1.06)

1 (1.14)

0.85

 Gestational age (weeks)

38.4 (2.66)

38.5 (2.62)

0.87

  1. *Chi-squared tests were used for categorical variables. T-tests were used for continuous variables. Mean and standard deviation are shown for continuous variables
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Clinical Epigenetics

ISSN: 1868-7083

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