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Predictors of nonadherence to screening colonoscopy
Thomas D Denberg1, Trisha V Melhado, John M Coombes
1Department of Medicine, University of Colorado at Denver and Health Sciences, Denver, Colo 80262, USA. tom.denberg@uchsc.edu
Journal of General Internal Medicine
|November 26, 2005
Summary
Half of patients referred for colorectal cancer (CRC) screening colonoscopy do not complete the procedure, primarily due to not scheduling. Improving adherence requires better patient communication and streamlined scheduling processes.
Area of Science:
- Gastroenterology
- Public Health
- Preventive Medicine
Background:
- Colonoscopy is a primary screening method for colorectal cancer (CRC).
- Understanding nonadherence to colonoscopy referrals is crucial for improving screening rates.
- Previous studies often combined colonoscopy with other procedures or overlooked nonscheduling as a barrier.
Purpose of the Study:
- To identify sociodemographic predictors of colonoscopy screening completion.
- To explore patient-reported reasons for nonadherence to colonoscopy referrals.
- To compare reported barriers between genders.
Main Methods:
- Retrospective cohort study of 647 patients referred for colonoscopy.
- Qualitative telephone interviews with 52 patients who never scheduled screening.
- Analysis of sociodemographic factors and patient-reported barriers.
Main Results:
- 50% of referred patients did not complete colonoscopy, mostly due to nonscheduling.
- Female sex, younger age, and insurance type were associated with lower adherence.
- Barriers included fear, perceived low risk, modesty concerns, cost, and scheduling difficulties.
- Women reported greater concerns about modesty and procedure aspects than men.
- Only 40% of patients knew about alternative CRC screening options.
Conclusions:
- Screening colonoscopy adherence is suboptimal.
- Improving adherence necessitates enhanced patient communication and counseling.
- Streamlining referral and scheduling processes is essential for increasing colonoscopy completion rates.