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Table 5 Summaries of contributing publicly available studies

From: Epigenetic modelling of former, current and never smokers

Publication Liu et al. Su et al. Tsaprouni et al. Ventham et al. Overall
Consortium EIRA N/A CARDIOGENICS IBD-BIOM
GEO accession GSE42861 GSE85210 GSE50660 GSE87648
N 689 253 464 383 1789
Mean age (SD) 51.9 (11.8) 34.5 (8.8) 55.4 (6.7) 36.7 (14.2) 47.0 (13.8)
Gender 492 female; 197 male 82 female; 171 male 137 female; 327 male 184 female; 199 male 895 female; 894 male
Never smokers 193 81 179 171 624
Current smokers 228 172 22 99 559
Former smokers 266 0 263 106 597