Objective: Given the large racial differences in prostate cancer risk, further investigation of diet and prostate cancer is warranted among high-risk groups. The purpose of this study was to examine the association between type of meat intake and prostate cancer risk among African-American men.
Methods: In the large, prospective NIH-AARP Diet and Health Study, we analyzed baseline (1995-1996) data from African-American participants, aged 50-71 years. Incident prostate cancer cases (n = 1,089) were identified through 2006. Dietary and risk factor data were ascertained by questionnaires administered at baseline. Cox models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) within intake quantiles.
Results: Neither white nor processed meat intake was associated with prostate cancer, regardless of meat-cooking method. Red meats cooked at high temperatures were associated with an increased risk of prostate cancer (HR = 1.18, 95% CI = 1.00-1.38 and HR = 1.22, 95% CI = 1.03-1.44, for the upper two intake tertiles). Intake of the heterocyclic amine (HCA), 2-amino-3,4,8-trimethylimidazo[4,5-f] quinoxaline (DiMeIQx) was positively associated with prostate cancer (HR = 1.30; 95% CI = 1.05-1.61, p = 0.02). No associations were observed for intake of other HCAs.
Conclusion: Red meats cooked at high temperatures were positively associated with prostate cancer risk among African-American men. Further studies are needed to replicate these findings.
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| http://dx.doi.org/10.1007/s10552-011-9845-1 | DOI Listing |
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