Résumé :
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[BDSP. Notice produite par INIST xyR0xyG5. Diffusion soumise à autorisation]. In 1996, more than 300,000 new cases of bladder cancer were diagnosed worldwide. Besides tobacco smoking, occupation, and other factors, diet may play a role in causation of this illness. The authors performed a meta-analytical review of epidemiologic studies linking six dietary factors to bladder cancer. These factors include retinol, beta-carotene, fruits, vegetables, meat, and fat. Increased risks of bladder cancer were associated with diets low in fruit intake (relative risk (RR)=1.40,95% confidence interval (Cl) : 1.08,1.83), and slightly increased risks were associated with diets low in vegetable intake (RR=1.16,95% Cl : 1.01,1.34). Elevated risks were identified for diets high in fat intake (RR=1.37,95% Cl : 1.16,1.62) but not for diets high in meat intake (RR=1.08,95% Cl : 0.82,1.42). No increased risks were found for diets low in retinol (RR=1.01,95% CI : 0.83,1.23) or beta-carotene (RR=1.10,95% CI : 0.93,1.30) intake. These results suggest that a diet high in fruits and vegetables and low in fat intake may help prevent bladder cancer, but the individual dietary constituents that reduce the risks remain unknown.
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