June 23, 2015

The coffee paradox in stroke: Increased consumption linked with fewer strokes

D S Liebeskind et al, 2015, The coffee paradox in stroke: Increased consumption linked with fewer strokes, Nutritional Neuroscience, published online ahead of print.

Objective: To determine the association in amount of daily coffee consumption with incidence of stroke in a broad cohort, considering other vascular risk factors.

Methods: We utilized the Third National Health and Nutrition Examination Survey (1988–1994; NHANES III) data on participants aged ≥17 years old to examine coffee consumption and stroke. Multivariate logistic regression models related the amount of coffee use reported in a food frequency questionnaire with stroke, controlling for other vascular risk factors.

Results: Of 33 994 NHANES III subjects, coffee consumption and stroke data in adults ≥17 years old were available in 19 994. Daily coffee consumption ranged from 0 to 20 (median 1) cups and 644 (3.2%) participants had a stroke diagnosed by a physician. Coffee intake varied with age, gender, and ethnicity (P < 0.001). Interestingly, heart failure, diabetes, and hypertension were less frequent, and high cholesterol more frequent in those consuming ≥3 cups per day (P < 0.001). Smoking was more frequent in all coffee drinkers (P < 0.0001). Multivariate analyses revealed an independent effect of heavier coffee consumption (≥3 cups/day) on reduced stroke (OR 0.44, 95% CI 0.22–0.87, P < 0.02) in healthy subjects that was attenuated by vascular risk factors (OR 0.78, 95% CI 0.58–1.07, P ≈ 0.12).

Conclusion: Heavier daily coffee consumption is associated with decreased stroke prevalence, despite smoking tendency in heavy coffee drinkers.

Modtag nyhedsbrev

Ja tak, jeg vil gerne modtage nyhedsbrev, når der er noget nyt om kaffe og helbred.