Printed In US.A Alcohol Intake and Premature Coronary Heart Disease in Urban Japanese Men

To examine the relation between alcohol intake and the incidence of coronary heart disease among Japanese, the authors analyzed data from a prospective study of 8,476 Japanese male employees, who were 40-59 years old at baseline (between 1975 and 1984) and worked for 13 urban companies in Osaka, Japan. These men were followed until the end of 1993, on average, an 8.8-year follow-up. Eighty-three coronary heart disease events (54 myocardial infarction, 32 angina pectoris) occurred during the employment period under study. Compared with the risk of coronary heart disease for never drinkers, the age-adjusted relative risk for those with an increased ethanol intake was lower, but the risk did not appear to be reduced further with the intake of a69 g of ethanol per day. The multivariate relative risk adjusted for age, serum total cholesterol, cigarette smoking, body mass index, left ventricular hypertrophy, and a history of diabetes mellitus was 0.83 (95 % confidence interval (Cl) 0.24-2.86) in exdrinkers, 0.69 (95 % Cl 0.37-1.29) in drinkers of 1-22 g/day of ethanol, 0.55 (95 % Cl 0.29-1.05) in drinkers of 23-45 g/day, 0.41 (95 % Cl 0.19-0.88) in drinkers of 46-68 g/day, and 0.59 (95 % Cl 0.23-1.51) in drinkers of ^69 g/day. The inverse association with alcohol intake was similar between myocardial infarction and angina pectoris. Alcohol intake seemed to prevent the premature incidence of coronary heart disease among urban Japanese middle-aged men. Am J Epidemiol 1998;147: 59-65. alcohol drinking; angina pectoris; myocardial infarction; prospective studies; risk factors Most Japanese middle-aged men drink alcohol reg-ularly (1, 2). According to our six population surveys of occupational employees or community residents (3), the prevalence of current drinking in men was 68-81 percent in 1980-1987 and 71-86 percent in 1990-1993. Epidemiologic data suggesting a protec-tive effect of light-to-moderate alcohol intake on cor-onary heart disease have come mostly from studies o