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Factors associated with incomplete colonoscopy: a population-based study
Hemant A Shah1, Lawrence F Paszat, Refik Saskin
1Department of Medicine, University of Toronto, Toronto, Canada.
In Ontario, 13.1% of colonoscopies were incomplete, with older age, female sex, and private office settings being key factors. Quality improvement initiatives are crucial to enhance colonoscopy completion rates for better colorectal cancer screening.
Area of Science:
- Gastroenterology
- Public Health
- Epidemiology
Background:
- The U.S. Multi-Society Task Force on Colorectal Cancer recommends a 90% cecal intubation rate for colonoscopies.
- Colonoscopy completion rates are a critical measure of screening quality.
Purpose of the Study:
- To determine the colonoscopy completion rate in a population-based cohort in Ontario.
- To identify patient, endoscopist, and setting-specific factors associated with incomplete colonoscopies.
Main Methods:
- A population-based study analyzed colonoscopies performed in Ontario between 1999 and 2003.
- Generalized estimating equations modeled factors associated with incomplete procedures.
Main Results:
- 13.1% of 331,608 index colonoscopies were incomplete.
- Incomplete procedures were associated with older patient age, female sex, prior abdominal/pelvic surgery.
- Procedures in private offices had significantly higher odds of being incomplete compared to academic hospitals.
Conclusions:
- A significant proportion of colonoscopies in Ontario remain incomplete in routine practice.
- Patient age, sex, and procedure setting are key predictors of colonoscopy completion.
- Targeted quality improvement programs are necessary to increase colonoscopy success rates.
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