Association of colonoscopy and death from colorectal cancer.


BACKGROUND Colonoscopy is advocated for screening and prevention of colorectal cancer (CRC), but randomized trials supporting the benefit of this practice are not available. OBJECTIVE To evaluate the association between colonoscopy and CRC deaths. DESIGN Population-based, case-control study. SETTING Ontario, Canada. PATIENTS Persons age 52 to 90… (More)

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