Sedation is associated with higher polyp and adenoma detection rates during colonoscopy: a retrospective cohort study

Abstract

Background and aims: Currently sedation is a common practice in colonoscopy to reduce pain of patients and improve the operator satisfaction, while its impact on examination quality, especially polyp detection rate (PDR) and adenoma detection rate (ADR) is still controversial. Thus, we aimed to investigate the association of sedation with PDR/ADR. Methods: Consecutive patients receiving colonoscopy between January 2017 to January 2020 at the Nanjing Drum Tower Hospital were collected. Univariate and multivariate logistic regression models were performed to investigate the association between sedation and PDR/ADR. Subgroup analysis and propensity score matching analysis (PSM), as sensitivity analysis, were performed to validate the independent effect. Results: The PDR and ADR were significantly higher in cases with sedation (PDR: 55.4% vs 46.6%, OR: 1.42, 95% CI: 1.32~1.53, P < 0.001; ADR: 37.3% vs 30.2%, OR: 1.37, 95% CI: 1.27~1.49, P < 0.001). Multivariate analysis showed that the sedation was an independent factor associated with PDR (OR: 1.54, 95% CI: 1.40~1.69, P < 0.001) and ADR (OR: 1.45, 95% CI: 1.32~1.60, P < 0.001). The effect was consistent in subgroup analyses(P > 0.05) and PSM analysis (PDR: 56.1% vs 46.4%, OR: 1.48, 95% CI: 1.35~1.62, P < 0.001; ADR: 37.4% vs 30.0%, OR: 1.40, 95% CI: 1.27~1.54, P < 0.001). Conclusion: Sedation was associated with a higher polyp and adenoma detection rates during colonoscopy, which can promote the quality of colonoscopy.

Sedation Is Associated with Higher Polyp and Adenoma Detection Rates during Colonoscopy: A Retrospective Cohort Study

“…Our results revealed that after adjusting potential confounding factors, the colonoscopy with sedation was significantly associated with higher ADR. After PSM, the results were still stable, which indicated that sedation was an independent factor associated with a higher ADR [ 22 ].…”