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Adequate management of patient pain and discomfort during colonoscopy is crucial to obtaining a high-quality examination. We aimed to investigate the ability of endoscopists and endoscopy assistants to accurately assess patient pain in colonoscopy. This was a single-center, cross-sectional study including patients scheduled for an outpatient colonoscopy. Procedure-related pain, as experienced by the patient, was scored on a verbal rating scale (VRS). Endoscopists and endoscopy assistants rated patient pain likewise. Cohen's kappa was used to measure the agr