Aims:
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).
Methods:
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.
Results:
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).
Conclusions:
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.
