title: Prevalence and risk factors of asymptomatic colorectal polyps in taiwan.
abstract: Purpose. To investigate the prevalence and risk factors of hyperplastic and adenomatous colorectal polyps in a Taiwanese general population. Methods. From January 2009 to December 2011, consecutive asymptomatic subjects undergoing a routine health check-up were evaluated by colonoscopy. The colorectal polyps were assessed, and medical history and demographic data were obtained from each patient. Logistic regression analysis was conducted to search the independent risk factors for asymptomatic hyperplastic and adenomatous colorectal polyps. Results. Of the 1899 asymptomatic subjects, the prevalences of hyperplastic polyps and adenomatous polyps were 11.1% and 16.1%, respectively. Multivariate analysis revealed that high body mass index (BMI > 25: OR, 1.32, 95% CI, 1.05-1.71) and current smoking (OR, 1.87, 95% CI, 1.42-2.71) were independent predictors for hyperplastic colorectal polyps. Age over 60 years old (OR, 3.49, 95% CI, 1.86-6.51), high body mass index (BMI > 25: OR, 1.75, 95% CI, 1.21-2.71), heavy alcohol consumption (OR, 2.01, 95% CI, 1.02-3.99), and current smoking (OR, 1.31, 95% CI, 1.04-1.58) were independent predictors for adenomatous colorectal polyps. Conclusion. High BMI and smoking are common risk factors for both adenomatous and hyperplastic polyps. Old age and alcohol consumption are additional risk factors for the development of adenomatous polyps.
authors: Department of Family Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan ; Department of Public Health, Kaohsiung Medical University, Kaohsiung City 803, Taiwan.
authors: Fu-Wei
authors: FW
authors: Wang
authors: Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Ping-I
authors: PI
authors: Hsu
authors: Department of Public Health, Kaohsiung Medical University, Kaohsiung City 803, Taiwan.
authors: Hung-Yi
authors: HY
authors: Chuang
authors: Department of Family Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Ming-Shium
authors: MS
authors: Tu
authors: Division of Cardiology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Guang-Yuan
authors: GY
authors: Mar
authors: Division of Colorectal Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Tai-Ming
authors: TM
authors: King
authors: Division of Colorectal Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Jui-Ho
authors: JH
authors: Wang
authors: Division of Colorectal Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Chao-Wen
authors: CW
authors: Hsu
authors: Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan.
authors: Chiu-Hua
authors: CH
authors: Chang
authors: Department of Radiation Oncology, Chang Gung Memorial Hospital, 123 TA-PEI Road, Kaohsiung City 833, Taiwan.
authors: Hui-Chun
authors: HC
authors: Chen