Background: We examined the associations of intakes of vegetables and carotenes with risk of prostate cancer in Japanese.
Methods: A total of 15 471 Japanese men participating in the Japan Collaborative Cohort study completed a questionnaire including food intake. Of them, 143 incident prostate cancers were documented. We examined the associations stated above by using Cox proportional hazard model.
Results: Vegetable intake was not associated with the risk of prostate cancer, but so was dietary alpha-carotene intake. The multivariable hazard ratio (95%CI) in the secondary highest and highest quintiles of alpha-carotene intake was 0.50 (0.26-0.98) (P=0.043) and 0.46 (0.22-0.97) (P=0.041) (P for trend=0.224), respectively. Beta-carotene intake was not associated with the risk of prostate cancer.
Conclusion: Alpha-carotene intake was associated with lower risk of prostate cancer among Japanese.
Written by:
Umesawa M, Iso H, Mikami K, Kubo T, Suzuki K, Watanabe Y, Mori M, Miki T, Tamakoshi A. Are you the author?
Department of Public Health, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan; Department of Public Health Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8577, Japan.
Reference: Br J Cancer. 2013 Oct 29. Epub ahead of print.
doi: 10.1038/bjc.2013.685
PubMed Abstract
PMID: 24169341
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