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Monday, May 4, 2009

Alcohol Consumption, Social Support, and Risk of Stroke and Coronary Heart Disease Among Japanese Men: The JPHC Study
Alcoholism: Clinical and Experimental Research Published Online: 19 Mar 2009

During an average follow-up of 9.9 years, 629 total strokes and 207 coronary heart diseases were documented. Light-to-moderate alcohol consumption was associated with reduced risks of coronary heart disease and total cardiovascular disease, while heavy alcohol consumption was associated with increased risk of total stroke, in particular hemorrhagic stroke. When stratified by social support score, the multivariable hazard ratios of total cardiovascular disease associated with light-to-moderate alcohol consumption (1 to 299 g/wk) were 0.99 (0.72 to 1.37) in the low social support group and 0.56 (0.44 to 0.70) in the high social support group (p for interaction = 0.002), while the multivariable hazard ratios of hemorrhagic stroke associated with heavy alcohol consumption (≥300 g/wk) were 2.09 (1.03 to 4.27) in the low social support group and 1.25 (0.72 to 2.15) in the high social support group (p for interaction = 0.44). There was no interaction between alcohol consumption and social support in relation to risk of coronary heart disease.

Social support may enhance the beneficial effect of light-to-moderate alcohol consumption on risk of cardiovascular disease.

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