Colorectal cancer, colorectal polyp
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Subjects who underwent colonoscopy from April 2010 to March 2020 (2) Subjects over 20 years old
Exclusion criteria
Exclusion criteria: (1) Those who refuse to participate (2) Those who underwent colonoscopy during the period when the endoscopic database of each hospital is not in place (3) Those who underwent colonoscopy within 6 months (4) Those who underwent colonoscopy for the purpose of detailed examination or treatment of colorectal lesions that were already pointed out (5) Those who diagnosed with inflammatory bowel disease such as ulcerative colitis or Crohn's disease (6) Those who underwent colonoscopy as an emergent endoscopy (7) Others
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| adenoma detection rate | — |
Secondary
| Measure | Time frame |
|---|---|
| polyp detection rate, invasive cancer detection rate, advanced neoplasia detection rate, sessile serrated lesion detection rate, neuroendocrine tumor detection rate, flat and depressed lesion detection rate, the total number of adenomas per colonoscopy, cecal intubation rate, and complication rate | — |
Countries
Japan
Contacts
Kyoto Second Red Cross Hospital Department of Gastroenterology