Validation of a Patient Satisfaction Scale in Patients Undergoing Bowel Preparation Prior to Colonoscopy

Hind T. Hatoum (), Swu-Jane Lin, Raymond E. Joseph and David N. Dahdal
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Hind T. Hatoum: Hind T. Hatoum & Company
Swu-Jane Lin: University of Illinois at Chicago
Raymond E. Joseph: Ferring Pharmaceuticals Inc.
David N. Dahdal: Ferring Pharmaceuticals Inc.

The Patient: Patient-Centered Outcomes Research, 2016, vol. 9, issue 1, No 4, 27-34

Abstract: Abstract Background Colonoscopy is the most widely used test to screen for colorectal cancer but its use may be hindered by patients’ inability to complete the bowel preparation. Patient-reported satisfaction with bowel-cleansing preparations has received little attention. We assessed the reliability and validity of a patient satisfaction survey used in two large, multicenter, randomized, assessor-blinded colonoscopy trials. Methods Datasets from two pivotal trials were combined. Patients in both trials included men and women aged 18–80 years who were scheduled for an elective outpatient colonoscopy. Questions relevant to satisfaction with bowel preparation prior to colonoscopy were identified from the literature and incorporated into a 7-item survey administered to patients on the day of colonoscopy. Domain 1 of the satisfaction measure assessed difficulty using bowel-cleansing preparations, ability to consume preparations, acceptability of taste, and overall experience; questions regarding acceptance or refusal of future use of the same bowel preparation were asked in Domain 2. Responses from each item of Domain 1 were transformed on a scale ranging from 0 to 100 and summed as total satisfaction scores. Cronbach’s alpha was used to measure reliability; validity was assessed by evaluating relationship between total satisfaction (Domain 1) and willingness to use preparation in the future (Domain 2). Results Mean age of the 1211 trial participants was 56: 61 % female, 89.5 % Caucasian. Domain 1 had a Cronbach’s alpha of 0.79, with higher satisfaction predicting higher future acceptability (p

Date: 2016
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DOI: 10.1007/s40271-015-0154-8

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