Black Tea and Coffee Intake and Prostate Cancer: A Case-Control Study

Prostate cancer is the most p-revalent cancer among males in econo-mically developed countries. Among the several risk factors suggested for prostate cancer, only age, ethnicity, and family hist-ory of prostate cancer are well- Prior stu-dies have shown that dietary intake can change cancer risk. Most data in this area was drawn from Western studies and dev-eloping countries have limited data in this regard. This study examined the association between black tea and coffee intake and the risk of prostate cancer in Iran. Cases were patients who were admitted to ‘Labbafi-Nejad Hos-pital’. Controls were patients admitted to the emergency service of the same hospital. The control and treatment group members were matched in terms of age (10years). A total of fifty patients with prostate cancer and a hundred controls underwent face-to-face interviews. We assessed participants’ dietary intakes during the past year by using a valid and reliable semi-quantitative food frequency questionnaire (FFQ). SPSS version 16 was used to analyze the data. a significant positive relationship was observed between consumption of bla-ck tea and prostate cancer risk (above medi-an vs. below median: OR = 2.9, 95%CI 1.0-3.0). We could not find a significant relat-ionship between coffee intake and prostate cancer risk (p=0.07) Discussion & The results of the present study suggest that high consu-mption of black tea might be positively related with an increased risk of prostate cancer.