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Table 4 Data availability in each study for different analyses

From: DNA methylation links prenatal smoking exposure to later life health outcomes in offspring

   

Sensitivity and downstream analyses for top CpG sites

Study

Mean age at methylation data collection (years)

Association results for cord-blood-methylation associated CpG sites

Never-smokers

Paternal smoking

Amount of cigarettes smoked in pregnancy

Longitudinal methylation data (mean age at the 2nd time point)

NFBC1986

16

Yes

Yes

Yes

Yes

No

NFBC1966

31

Yes

Yes

Yes

Yes

Yes (46 years)

ALSPAC mothers

30

Yes

Yes

No

No

Yes (48 years)

ALSPAC children

17

Yes

Yes

Yes

No

No

IOWBC

18

Yes

Yes

No

No

No