Mary K Townsend1, Elizabeth Devore, Jae Hee Kang, Francine Grodstein. 1. Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 181 Longwood Avenue, Boston, MA 02115, USA. mary.townsend@channing.harvard.edu
Abstract
AIMS: To examine the association between moderate drinking, cognitive function, and cognitive decline in women with type 2 diabetes. METHODS: From 1995 to 2001, we assessed cognitive function in 1,698 women aged 71-80 years with type 2 diabetes in the Nurses' Health Study. Assessments were repeated twice at 2-year intervals. We used linear regression to estimate multivariable-adjusted mean differences in initial cognitive function and longitudinal models to estimate cognitive decline over 4 years, according to average alcohol intake between diagnosis with diabetes and the initial cognitive measurement. RESULTS: At the initial assessment, the mean score on our test of general cognition was 0.31 (95% CI 0.02, 0.60) points higher in women who were moderate alcohol drinkers (those consuming 1.0-9.9 g of alcohol, or about 1 drink, per day) compared with abstainers. However, moderate alcohol was not associated with cognitive decline. Higher alcohol consumption (10.0-30.0 g of alcohol per day) was not associated with initial cognition or cognitive decline, although there was no apparent harm either. CONCLUSIONS: Among women with type 2 diabetes, moderate alcohol was associated with better initial cognition, but not reduced rates of cognitive decline. Thus, we found no clear and consistent cognitive benefits of moderate alcohol in diabetes.
AIMS: To examine the association between moderate drinking, cognitive function, and cognitive decline in women with type 2 diabetes. METHODS: From 1995 to 2001, we assessed cognitive function in 1,698 women aged 71-80 years with type 2 diabetes in the Nurses' Health Study. Assessments were repeated twice at 2-year intervals. We used linear regression to estimate multivariable-adjusted mean differences in initial cognitive function and longitudinal models to estimate cognitive decline over 4 years, according to average alcohol intake between diagnosis with diabetes and the initial cognitive measurement. RESULTS: At the initial assessment, the mean score on our test of general cognition was 0.31 (95% CI 0.02, 0.60) points higher in women who were moderate alcohol drinkers (those consuming 1.0-9.9 g of alcohol, or about 1 drink, per day) compared with abstainers. However, moderate alcohol was not associated with cognitive decline. Higher alcohol consumption (10.0-30.0 g of alcohol per day) was not associated with initial cognition or cognitive decline, although there was no apparent harm either. CONCLUSIONS: Among women with type 2 diabetes, moderate alcohol was associated with better initial cognition, but not reduced rates of cognitive decline. Thus, we found no clear and consistent cognitive benefits of moderate alcohol in diabetes.
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