Résumé :
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[BDSP. Notice produite par INIST-CNRS XrR0xyX1. Diffusion soumise à autorisation]. Background : Green tea, a popular beverage in Japan, contains many polyphenolic antioxidants, which might prevent cardiovascular disease. This study is designed to determine whether the consumption of green tea is associated with a reduced risk for subarachnoid hemorrhage (SAH) using a case-control study. Methods : Incident SAH cases (n=201) were identified and individually matched by age (+/-2 years) and gender to hospital (n=201) and community controls (n=201) from April 1992 to March 1997. Habitual regular tea consumption was assessed with a structured questionnaire. Conditional logistic regression models were used to compute odds ratios adjusted for smoking, history of hypertension, and educational levels. Results : The proportion of the consumption of one time or more of tea per day was higher in controls (70.9%) than in SAH patients (60.3%). Multivariate analyses showed that green tea consumption was inversely associated with SAH risk. Subjects consuming=1 time per day had adjusted ORs of 0.74 (CI : 0.34-1.58), and 0.56 (CI : 0.32-0.98) in comparison with non daily green tea drinkers, respectively (p-trend
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