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Factors associated with incomplete colonoscopy at a Japanese academic hospital
Authors:Shigeo Koido  Toshifumi Ohkusa  Kosaburo Nakae  Tetsuji Yokoyama  Tomoyoshi Shibuya  Naoto Sakamoto  Kan Uchiyama  Hiroshi Arakawa  Taro Osada  Akihito Nagahara  Sumio Watanabe  Hisao Tajiri  Division of Gastroenterology  Hepatology
Affiliation:Shigeo Koido;Toshifumi Ohkusa;Kosaburo Nakae;Tetsuji Yokoyama;Tomoyoshi Shibuya;Naoto Sakamoto;Kan Uchiyama;Hiroshi Arakawa;Taro Osada;Akihito Nagahara;Sumio Watanabe;Hisao Tajiri;Division of Gastroenterology and Hepatology,Department of Internal Medicine,The Jikei University School of Medicine,Chiba 277-8567,Japan;Department of Gastroenterology,Juntendo University School of Medicine,Tokyo 113-8421,Japan;Department of Technology Assessment and Biostatistics,National Institute of Public Health,Saitama 351-0197,Japan;
Abstract:AIM: To evaluate significant risk factors for incomplete colonoscopy at a Japanese academic hospital.METHODS: A total of 11812 consecutive Japanese people were identified who underwent a colonoscopy at an academic hospital. A multiple logistic regression model was used to evaluate retrospectively the significant risk factors for incomplete colonoscopy.RESULTS: The cecal intubation rate was 95.0%. By univariate analysis, age, female sex, poor bowel cleansing, and a history of abdominal or pelvic surgery were significant risk factors for incomplete colonoscopy (P < 0.001). Moreover, age- and sex-adjusted analysis showed that significant risk factors for incomplete colonoscopy were female sex (OR = 1.38, 95%CI: 1.17-1.64, P = 0.0002), age ≥ 60 years old (OR = 1.44, 95%CI: 1.22-1.71, P < 0.0001), a history of prior abdominal or pelvic surgery (OR = 1.55, 95%CI: 1.28-1.86, P < 0.0001), poor bowel cleansing (OR = 4.64, 95%CI: 3.69-5.84, P < 0.0001), and inflammatory bowel disease (IBD) (OR = 1.48, 95%CI: 1.13-1.95, P = 0.0048). In Japanese men, by age-adjusted analysis, IBD (OR = 1.69, 95%CI: 1.18-2.43, P = 0.005) was an independent risk factor for incomplete colonoscopy.CONCLUSION: Several characteristics in the Japanese population were identified that could predict technical difficulty with colonoscopy.
Keywords:Colonoscopy   Incomplete   Intubation rates   Japanese academic hospital   Risk factors   Inflammatory bowel disease
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