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Related Experiment Video

Updated: Jun 17, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Published on: July 11, 2025

Do indication and demographics for colonoscopy affect completion? A large national database evaluation.

Maneesh Gupta¹, Jennifer L Holub, Glenn Eisen

¹Department of Internal Medicine, Oregon Health and Science University, Portland, Oregon 97239, USA.

European Journal of Gastroenterology & Hepatology

|December 25, 2009

Summary

This summary is machine-generated.

Colonoscopy completion rates are high overall, meeting guidelines. Screening indications show comparable completion to other reasons, but factors like non-specific symptoms, female sex, and older age increase incomplete procedure risk.

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E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

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Published on: August 1, 2019

Area of Science:

Gastroenterology
Clinical Outcomes Research
Preventive Medicine

Background:

Colonoscopy completion rates are crucial for diagnostic accuracy and patient outcomes.
The impact of indication on colonoscopy completion has not been extensively studied.
Hypothesis: Colorectal cancer screening indications may yield higher completion rates than other indications.

Purpose of the Study:

To examine colonoscopy indications as predictors of procedure completion.
To compare completion rates across various indications for colonoscopy.

Main Methods:

Retrospective cohort study analyzing 129,549 colonoscopies from the Clinical Outcomes Research Initiative database (2002-2003).
Indications included average-risk screening, surveillance, nonspecific abdominal symptoms, bleeding symptoms, and family history.
Logistic regression analysis evaluated demographic factors and indication for incomplete colonoscopy.

Main Results:

Average-risk screening was associated with higher completion rates (RR: 0.69).
Bleeding and nonspecific abdominal symptoms increased the risk of incomplete procedures.
Males, community settings, and younger age were associated with higher completion rates.

Conclusions:

Colonoscopy for screening has comparable completion rates to other indications.
Overall completion rates met recommended guidelines (approx. 95%).
Factors increasing incomplete procedure risk include nonspecific symptoms, female sex, advanced age, and specific ethnic groups.