patients receiving standard care (verbal and written instructions) before colonoscopy

Patients instructed to use a smart phone patient education app in addition standard care

Smart phone patient education application including a personalized colonoscopy preparation scheme and information about the procedure.

Boston Bowel Preparation Score (BBPS) is a validated scale for scoring bowel preparation. Each colonic segment (ascending, transverse, descending) is scored on a scale ranging from 0 to 3, in which a higher value means a cleaner bowel segment. The total score is the sum of the three segment scores (total range 0-9).

Patient satisfaction questionnaire. Several questions in our PSQ (patient satisfaction questionnaire) are based on the PSQ-18. We transformed items from the PSQ-18 to bowel preparation education purposes. The PSQ-18 yields separate scores for each of seven different subscales: General Satisfaction; Technical Quality; Interpersonal Manner; Communication; Financial Aspects; Time Spent with Doctor and Accessibility and Convenience (8, 9). Our PSQ contains items for General Satisfaction (items 3 and 6), Technical Quality (items 8 and 9), Communication (items 1 and 2), Time spent on education (item 7) and Convenience (items 4 and 5). Second, general questions are asked to determine if this was the first time patient received bowel preparation education. And last, for the app users we want to know how they rate the use of the app.