Eight studies were included in the review, with 4,358 patients. Four were cross-sectional studies (2,039 patients), three were prospective cohorts (1,951 patients), and one was a single-blinded controlled study (368 patients).
Patient satisfaction: Factors influencing satisfaction with colonoscopy and endoscopy services included cleanliness, comfort and the physical environment, waiting times, and staff (their manner, skills, specialty, and adequate discussions or explanations of the procedure and results). Results from two studies reported associations between higher pain scores or pre-test anxiety and lower patient satisfaction.
Willingness to return: Factors influencing this included comfort while waiting for the procedure, lack of embarrassment during the procedure, experiencing less discomfort than expected, waiting an acceptable length of time until discharge, and discussing the results with the endoscopist.