Gastrointestinal endoscopy · 2015
The impact of exclusion criteria on a physician's adenoma detection rate.
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Marcondes Felippe O, Dean Katie M, Schoen Robert E, Leffler Daniel A, Rose Sherri, Morris Michele, Mehrotra Ateev
Аннотация
BACKGROUND: The adenoma detection rate (ADR) is a validated and widely used measure of colonoscopy quality. There is uncertainty in the published literature as to which colonoscopy examinations should be excluded when measuring a physician's ADR.
OBJECTIVE: To examine the impact of varying the colonoscopy exclusion criteria on physician ADR.
DESIGN: We applied different exclusion criteria used in 30 previous studies to a dataset of endoscopy and pathology reports. Under each exclusion criterion, we calculated physician ADR.
SETTING: A private practice colonoscopy center affiliated with the University of Illinois College of Medicine.
PATIENTS: Data on 20,040 colonoscopy examinations performed by 11 gastroenterologists from July 2009 to May 2013 and associated pathology notes.
MAIN OUTCOME MEASUREMENTS: ADRs across all colonoscopy examinations, each physician's ADR, and ADR ranking.
RESULTS: There were 28 different exclusion criteria used when measuring the ADR. Each study used a different combination of these exclusion criteria. The proportion of all colonoscopy examinations in the dataset excluded under these combinations of exclusion criteria ranged from 0% to 92.2%. The mean ADR across all colonoscopy examinations was 39.1%. The change in mean ADR after applying the 28 exclusion criteria ranged from -5.5 to +3.0 percentage points. However, the exclusion criteria affected each physician's ADR relatively equally, and therefore physicians' rankings via the ADR were stable.
LIMITATIONS: ADR assessment was limited to a single private endoscopy center.
CONCLUSION: There is wide variation in the exclusion criteria used when measuring the ADR. Although these exclusion criteria can affect overall ADRs, the relative rankings of physicians by ADR were stable. A consensus definition of which exclusion criteria are applied when measuring ADR is needed.
OBJECTIVE: To examine the impact of varying the colonoscopy exclusion criteria on physician ADR.
DESIGN: We applied different exclusion criteria used in 30 previous studies to a dataset of endoscopy and pathology reports. Under each exclusion criterion, we calculated physician ADR.
SETTING: A private practice colonoscopy center affiliated with the University of Illinois College of Medicine.
PATIENTS: Data on 20,040 colonoscopy examinations performed by 11 gastroenterologists from July 2009 to May 2013 and associated pathology notes.
MAIN OUTCOME MEASUREMENTS: ADRs across all colonoscopy examinations, each physician's ADR, and ADR ranking.
RESULTS: There were 28 different exclusion criteria used when measuring the ADR. Each study used a different combination of these exclusion criteria. The proportion of all colonoscopy examinations in the dataset excluded under these combinations of exclusion criteria ranged from 0% to 92.2%. The mean ADR across all colonoscopy examinations was 39.1%. The change in mean ADR after applying the 28 exclusion criteria ranged from -5.5 to +3.0 percentage points. However, the exclusion criteria affected each physician's ADR relatively equally, and therefore physicians' rankings via the ADR were stable.
LIMITATIONS: ADR assessment was limited to a single private endoscopy center.
CONCLUSION: There is wide variation in the exclusion criteria used when measuring the ADR. Although these exclusion criteria can affect overall ADRs, the relative rankings of physicians by ADR were stable. A consensus definition of which exclusion criteria are applied when measuring ADR is needed.