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Am J Epidemiol. 1988 May;127(5):999-1012.

Diet and prostatic cancer: a case-control study in Hawaii.

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Epidemiology Program, Cancer Research Center, University of Hawaii, Honolulu 96813.


A total of 452 cases of prostatic cancer identified through the population-based Hawaii Tumor Registry during the period 1977-1983 and 899 age-matched population controls were interviewed on the island of Oahu from 1981 to 1983. All interviews of the subjects, who comprised five different ethnic groups, were conducted in the home by use of a quantitative dietary history method. Usual weekly intake of fat, zinc, and vitamins A and C, including supplements, was determined for each subject. Among men 70 years or older, but not among younger men, and mean weekly consumption of saturated fat, carotenes, and zinc, adjusted for age and ethnicity, was greater for cases than for controls. In a multiple logistic regression analysis, the odds ratio for the highest quartile of fat intake among the older men was 1.7 (95% confidence interval (CI) 1.0-2.8). The corresponding odds ratios were 1.6 (95% CI 1.0-2.5) for carotenes, 1.4 (95% CI 0.9-2.3) for total vitamin C, and 1.7 (95% CI 1.1-2.7) for total zinc. There were significant linear trends in the odds ratios for saturated fat and zinc, but no synergistic interactions among the nutrients. The findings suggest that several different components of the diet may contribute independently to the risk of prostatic cancer in elderly men.

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