Detection of colorectal polyps and adenomas in asymptomatic health examination population and analysis of relevant clinical factors

Abstract

Objective To analysis the incidence and relevant clinical factors of colorectal polyps and adenomas in population of health examination. Methods Colonoscopy results and clinical data of 615 cases undergoing health examination from January 2018 to March 2019 were analyzed retrospectively in International Medical Center, Beijing Friendship Hospital, Capital Medical University.There were 436 males and 179 females, average age 47.38 years, aged 18-81 years. The clinical data contained sex, age, smoking history, drinking history, body mass index.Chi-square test and trend chi-square test were used to compare the differences of polyp detection rate and adenoma detection rate in different populations. Multivariate Logistic regression analysis were applied to explore the potential factors associated with the polyp detection rate and adenoma detection rate. Results Two hundred and forty cases(39.02%) with colorectal disease were checked out, include 206 cases(33.50%) with colorectal polyps and 138 cases(22.44%) with colorectal adenomas. In the detection rate of colorectal polyps, male were higher than female[36.70%(160/436) vs 25.70%(46/179), χ2=6.89, P 0.05]. Multivariate Logistic regression analysis showed that age increasing, body mass index increasing, smoking and alcohol consumption were risk factors for colorectal polyps and adenomas. Conclusions The detection rate of colorectal polyps and adenomas are related with sex, age, smoking, drinking and body mass index. Age increasing, body mass index increasing and smoking are the risk factors for colorectal polyps, age increasing and body mass index increasing are the risk factors for colorectal adenomas. Key words: Colonoscopes; Adenoma; Asymptomatic examination; Colorectal polyps