Abstract Title:

Cocoa intake, blood pressure, and cardiovascular mortality: the Zutphen Elderly Study.

Abstract Source:

Arch Intern Med. 2006 Feb 27 ;166(4):411-7. PMID: 16505260

Abstract Author(s):

Brian Buijsse, Edith J M Feskens, Frans J Kok, Daan Kromhout

Article Affiliation:

Center for Nutrition and Health, National Institute for Public Health and the Environment, Bilthoven, and Division of Human Nutrition, Wageningen University, Wageningen, the Netherlands. brian.buijsse@rivm.nl


BACKGROUND: Small, short-term, intervention studies indicate that cocoa-containing foods improve endothelial function and reduce blood pressure. We studied whether habitual cocoa intake was cross-sectionally related to blood pressure and prospectively related with cardiovascular mortality.

METHODS: Data used were of 470 elderly men participating in the Zutphen Elderly Study and free of chronic diseases at baseline. Blood pressure was measured at baseline and 5 years later, and causes of death were ascertained during 15 years of follow-up. Habitual food consumption was assessed by the cross-check dietary history method in 1985, 1990, and 1995. Cocoa intake was estimated from the consumption of cocoa-containing foods.

RESULTS: One third of the men did not use cocoa at baseline. The median cocoa intake among users was 2.11 g/d. After adjustment, the mean systolic blood pressure in the highest tertile of cocoa intake was 3.7 mm Hg lower (95% confidence interval [CI], -7.1 to -0.3 mm Hg; P = .03 for trend) and the mean diastolic blood pressure was 2.1 mm Hg lower (95% CI, -4.0 to -0.2 mm Hg; P = .03 for trend) compared with the lowest tertile. During follow-up, 314 men died, 152 of cardiovascular diseases. Compared with the lowest tertile of cocoa intake, the adjusted relative risk for men in the highest tertile was 0.50 (95% CI, 0.32-0.78; P = .004 for trend) for cardiovascular mortality and 0.53 (95% CI, 0.39-0.72; P<.001) for all-cause mortality.

CONCLUSION: In a cohort of elderly men, cocoa intake is inversely associated with blood pressure and 15-year cardiovascular and all-cause mortality.

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