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Diabetes Care. 2009 Nov;32(11):2123-32. doi: 10.2337/dc09-0227.

Alcohol as a risk factor for type 2 diabetes: A systematic review and meta-analysis.

Author information

1
Centre for Addiction and Mental Health, Toronto, Ontario, Canada. dolly.baliunas@utoronto.ca

Abstract

OBJECTIVE:

To clarify the dose-response relationship between alcohol consumption and type 2 diabetes.

RESEARCH DESIGN AND METHODS:

A systematic computer-assisted and hand search was conducted to identify relevant articles with longitudinal design and quantitative measurement of alcohol consumption. Adjustment was made for the sick-quitter effect. We used fractional polynomials in a meta-regression to determine the dose-response relationships by sex and end point using lifetime abstainers as the reference group.

RESULTS:

The search revealed 20 cohort studies that met our inclusion criteria. A U-shaped relationship was found for both sexes. Compared with lifetime abstainers, the relative risk (RR) for type 2 diabetes among men was most protective when consuming 22 g/day alcohol (RR 0.87 [95% CI 0.76-1.00]) and became deleterious at just over 60 g/day alcohol (1.01 [0.71-1.44]). Among women, consumption of 24 g/day alcohol was most protective (0.60 [0.52-0.69]) and became deleterious at about 50 g/day alcohol (1.02 [0.83-1.26]).

CONCLUSIONS:

Our analysis confirms previous research findings that moderate alcohol consumption is protective for type 2 diabetes in men and women.

PMID:
19875607
PMCID:
PMC2768203
DOI:
10.2337/dc09-0227
[Indexed for MEDLINE]
Free PMC Article

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