From: DNA methylation links prenatal smoking exposure to later life health outcomes in offspring
Sensitivity and downstream analyses for top CpG sites | ||||||
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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 |