In all French centres combined, the proportion of individuals who experienced a hard coronary event differed significantly across categories of alcohol volume (P=0.02; table 3). This relation was not observed in Belfast. In both countries, the highest incidence of hard coronary events was noted in the non-drinking groups (6.4% in Belfast and 4.6% in the French centres). Whatever the category of alcohol consumption, the proportions of individuals who experienced a hard coronary event or an angina event were always higher in Belfast than in the French centres.
