All cancers: ORs and 95% CIs for the association between five methylation scores for maternal smoking and risk of eight types of cancer in the MCCS. ORs were calculated using conditional logistic regression models, adjusting for white blood cell composition, smoking status (current/former/never), alcohol consumption (in g/day) and body mass index (in kg/m²). Cases and controls were matched on age, sex, country of birth, sample type (and smoking for the lung cancer study), and placed consecutively on the same chip of the assay