Risk factors for anal cancer: results of a population-based case–control study

摘要: Objective: Although the incidence of anal cancer is higher in women than men, reasons for this gender difference are not clear. The purpose study was to identify risk factors both men and women. Methods: We conducted in-person interviews with 102 males 106 females squamous or transitional cell carcinoma anus 208 individually matched controls. Results: Compared persons who had never experienced receptive intercourse, those it more 130 times were 18 as likely develop (adjusted odds ratio [OR] = 17.6 (95% confidence interval [CI] 1.3–234). This elevated occurred primarily among males. adjusted OR having 10% their sexual experiences other 5.6 CI 1.4–22.0). A history anogenital endometrial cancers increased but men. warts, syphilis, severe hemorrhoids, physical inactivity, multiple partners smoked, current smoking also associated risk. Conclusions: results suggest that non-sexual important etiology cancer.