No link found between caffeine intake and development of hypertensio...( sion was observed after multivariate ad...),Health

sion was observed after multivariate adjustment. When studying individual classes of caffeinated beverages, habitual coffee consumption was not associated with increased risk of hypertension. By contrast, consumption of cola beverages was associated with an increased risk of hypertension, independent of whether it was sugared or diet cola.

"In this study with more than 1.4 million person-years of follow-up [the number of women in the study times the number of years of follow-up per woman], the relevant exposures and outcomes have been found valid and accurate, and coffee intake was updated to reflect changes in individual behavior. We found strong evidence to refute speculation that coffee consumption is associated with an increased risk of hypertension in women," the authors write.

Concerning the link found between colas and hypertension, the researchers write: "? we speculate that it is not caffeine but perhaps some other compound contained in soda-type soft drinks that may be responsible for the increased risk in hypertension. If these associations are causal, they may have considerable impact on public health."

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Contact: Amy Dayton Smith
617-534-1603
JAMA and Archives Journals
8-Nov-2005

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