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DEVELOPMENT AND VALIDATION OF A COLONOSCOPY SATISFACTION AND SAFETY QUESTIONNAIRE BASED ON PATIENT'S EXPERIENCE (CSSQP)
27 March 2018 (online)
Colonoscopy services must ensure the implementation of quality assesment and improvement programs from patients' perspective. The aim of this study was to design and validate a specific questionnaire for patients undergoing colonoscopy within the colorectal cancer (CRC) program, the Colonoscopy Satisfaction and Safety Questionnaire based on Patient experience (CSSQP).
Questionnaire design and development was carried out in three phases: 1) review of available evidence in order to inform the questionnaire guide; 2) focus group phase with participation of physicians, nurses and patients, with the objective of exploring the dimensions of quality and safety relevant for patients to produce the instrument; 3) validation of the questionnaire by patients who had undergone a colonoscopy within the CRC screening program, in order to test the instrument and determine its metric properties.
Of the 505 questionnaires distributed, 378 (74,85%) were return. The CSSQP version 1 consist of 18 items. The principal components analysis of the satisfaction items isolated three factors with saturation of elements above 0.52 and with high internal consistency: Information (5 items; Cronbach's alpha 0.84), Care (5 items; Cronbach's alpha 0.80) and Service and Facilities features (3 items; Cronbach's alpha 0.74). The analysis of the safety items isolated two factors with element saturations above 0.58: Information (3 items; Cronbach's alpha 0.43) and incidents and complications (3 items; Cronbach's alpha 0.53).
The CSSQP is a tool developed from the patients perspectives that is valid, reliable and replicable for measuring satisfaction and safety of patients who have undergone a colonoscopy for CRC screening.