Men who had never consumed alcohol before inclusion in the study were labelled “never drinkers.” “Former drinkers” corresponded to men who had quit alcohol consumption for different reasons and declared no consumption at inclusion in the study. Among non-drinkers at inclusion (never drinkers + former drinkers; n=949 and n=694 in Belfast and France, respectively), 46.1% (n=438) had quit drinking in Belfast and 69.7% (n=484) in France.
