Please use this identifier to cite or link to this item: https://doi.org/10.1093/jnci/djr151
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dc.titleCoffee consumption and prostate cancer risk and progression in the health professionals follow-up study
dc.contributor.authorWilson, K.M.
dc.contributor.authorKasperzyk, J.L.
dc.contributor.authorRider, J.R.
dc.contributor.authorKenfield, S.
dc.contributor.authorVan Dam, R.M.
dc.contributor.authorStampfer, M.J.
dc.contributor.authorGiovannucci, E.
dc.contributor.authorMucci, L.A.
dc.date.accessioned2014-11-26T07:43:38Z
dc.date.available2014-11-26T07:43:38Z
dc.date.issued2011
dc.identifier.citationWilson, K.M., Kasperzyk, J.L., Rider, J.R., Kenfield, S., Van Dam, R.M., Stampfer, M.J., Giovannucci, E., Mucci, L.A. (2011). Coffee consumption and prostate cancer risk and progression in the health professionals follow-up study. Journal of the National Cancer Institute 103 (11) : 876-884. ScholarBank@NUS Repository. https://doi.org/10.1093/jnci/djr151
dc.identifier.issn00278874
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/109252
dc.description.abstractBackground Coffee contains many biologically active compounds, including caffeine and phenolic acids, that have potent antioxidant activity and can affect glucose metabolism and sex hormone levels. Because of these biological activities, coffee may be associated with a reduced risk of prostate cancer.MethodsWe conducted a prospective analysis of 47 911 men in the Health Professionals Follow-up Study who reported intake of regular and decaffeinated coffee in 1986 and every 4 years thereafter. From 1986 to 2006, 5035 patients with prostate cancer were identified, including 642 patients with lethal prostate cancers, defined as fatal or metastatic. We used Cox proportional hazards models to assess the association between coffee and prostate cancer, adjusting for potential confounding by smoking, obesity, and other variables. All P values were from two-sided tests.ResultsThe average intake of coffee in 1986 was 1.9 cups per day. Men who consumed six or more cups per day had a lower adjusted relative risk for overall prostate cancer compared with nondrinkers (RR = 0.82, 95% confidence interval [CI] = 0.68 to 0.98, Ptrend =. 10). The association was stronger for lethal prostate cancer (consumers of more than six cups of coffee per day: RR = 0.40, 95% CI = 0.22 to 0.75, Ptrend =. 03). Coffee consumption was not associated with the risk of nonadvanced or low-grade cancers and was only weakly inversely associated with high-grade cancer. The inverse association with lethal cancer was similar for regular and decaffeinated coffee (each one cup per day increment: RR = 0.94, 95% CI = 0.88 to 1.01, P =. 08 for regular coffee and RR = 0.91, 95% CI = 0.83 to 1.00, P =. 05 for decaffeinated coffee). The age-adjusted incidence rates for men who had the highest (≥6 cups per day) and lowest (no coffee) coffee consumption were 425 and 519 total prostate cancers, respectively, per 100 000 person-years and 34 and 79 lethal prostate cancers, respectively, per 100 000 person-years.ConclusionsWe observed a strong inverse association between coffee consumption and risk of lethal prostate cancer. The association appears to be related to non-caffeine components of coffee. © 2011 The Author.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentEPIDEMIOLOGY & PUBLIC HEALTH
dc.description.doi10.1093/jnci/djr151
dc.description.sourcetitleJournal of the National Cancer Institute
dc.description.volume103
dc.description.issue11
dc.description.page876-884
dc.description.codenJNCIA
dc.identifier.isiut000291490900009
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