Epidemiology of polyps in the rectum and sigmoid colon. Design of a population screening study.
The design of a population screening study, including endoscopic screening for polyps in the rectum and sigmoid colon, was tested in a defined population sample of 200 women and 200 men aged 50-59 years. The attendance rate was 81%. A simple bowel cleansing procedure performed immediately before the examination gave satisfactory conditions for endoscopic examination in 94% of attendants. Polyp prevalence was 35%. The present material and results represent the basis for further follow-up studies of risk factors for the development of cancer in the same group of individuals.
D003111:Colonic Polyps / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D009664:Norway; D012004:Rectal Neoplasms / Q000453:epidemiology*; D012811:Sigmoid Neoplasms / Q000453:epidemiology*; D012812:Sigmoidoscopy