Analysis of colonoscopy examination in 529 healthy adults

Abstract

Objective To explore the significance of colonoscopy examination in heahhy subjects. Methods A total of 537 health examination cases who underwent colonoscopy from January 2010 to June 2011 in Peking Union Medical College Hospital （PUMCH） health examination center were enrolled, in which 529 cases underwent total colonoscopy. Detection of colorectal lesion, polyp types and pathology were recorded and the correlation between detection rate of polyps, lesion sites and ages as well as gender were analyzed. Results There were 315 male and 214 female, with a mean age of 48.3 ±9. 3 years. A total of 158 colorectal polyps were detected in 104 cases （ 19. 7% ）, including 84 （ 15. 9% ） adenomas, 17 （3.2%） advanced polyps and 1 （0. 2% ） rectal cancer. Other abnormalities were hemorrhoids in 61 cases （11.5%） and inflammation in 22 （4. 2% ）. Colorectal polyps were more frequent in men （P 〈0. 001 ）. Adults older than 50 had higher rates of colorectal polyps （ P 〈 0. 001 ） and advanced polyps （ P 〈 0. 05 ）. The proportion of patients with proximal polyps increased with age, whereas that of patients with distal polyps decreased with age （P 〈 0. 05 ）. Conclusion Colonoscopy is an effective screening modality for colorectal lesions and the importance of colonoscopy on health examination population to prevent colorectal cancer should be stressed. Key words: Colonic polyps ; Colonoscopes ; Mass screening; Health examination