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Table 1 Participant characteristics

From: Epigenome-wide contributions to individual differences in childhood phenotypes: a GREML approach

Characteristic

ALSPAC

Generation R

nobserved

Mean (SD)/proportion

nobserved

Mean (SD)/proportion

Girls

775

51.2%

1382

49.3%

Maternal age in years

775

29.76 (4.4)

1382

31.7 (4.2)

Maternal education

    

Primary education

  

1362

1.9%

Secondary education

775

79.1%

1362

33.0%

Higher education

775

20.9%

1362

65.1%

Smoking

    

Continued smoking during pregnancy

767

12.5%

1378

13.4%

Quit smoking during pregnancy

  

1378

9.1%

Cell type composition

    

CD8 T cells

775

7.0% (3.0%)

1382

5.7% (2.4%)

Natural killer cells

775

8.4% (2.7%)

1382

7.9% (2.7%)

CD4 T cells

775

6.4% (5.9%)

1382

10.6% (6.0%)

B cells

775

7.5% (2.5%)

1382

6.1% (2.2%)

Granulocytes

775

52.0% (9.8%)

1382

50.7% (9.1%)

Monocytes

775

7.4% (2.7%)

1382

8.5% (2.4%)

Nucleated red blood cells

775

19.1% (6.2%)

1382

16.5% (8.0%)

Outcomes

    

Gestational age in weeks

775

39.6 (1.5)

1382

40.1 (1.5)

Birth weight in g

766

3490 (476)

1381

3545 (510)

BMI in kg/m2

772

16.19 (2.0)

1183

15.9 (1.4)

ADHD

773

0.52 (0.90)

1060

7.5 (6.6)

IQ

747

102.6 (17.0)

1094

106.2 (14.3)