© 1994 Oxford University Press
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Alcohol Consumption and Blood Pressure: An Extended Study of Self-Defence Officials in Japan


* Department of public Health, National Defense Medical College Tokorozawa, Saitama 359, Japan
** Department of Hygiene, Showa University School of Medicine Tokyo, Japan
Self-Defense Forces Fukuoka Hospital Fukuoka, Japan
BACKGROUND: It remains controversial whether the relation between alcohol intake and blood pressure is linear or non-linear.
METHODS: The relation between alcohol intake and blood pressure was investigated in 2341 male self-defence officials who received a preretirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1990. Average alcohol intake in the past year was ascertained by a self-administered questionnaire. The study excluded past drinkers, and allowed for smoking, body mass index and glucose tolerance.
RESULTS: Blood pressure was higher at higher levels of alcohol intake across the range from 0 to 4059 ml of alcohol per day, but was not progressively higher in men consuming
60 ml per day. Blood pressure was significantly higher even among light drinkers (<20 ml per day) compared to non-drinkers; adjusted mean differences were 3.1 mmHg (95% confidence interval (CI): 1.15.2) in systolic pressure and 2.1 mmHg (95% CI: 0.73.5) in diastolic pressure.
CONCLUSIONS: Our findings do not support the existence of a threshold in the relation between alcohol and blood pressure.
Received 1 November 1993