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Revista Española de Enfermedades Digestivas

Print version ISSN 1130-0108

Abstract

SANCHEZ DEL RIO, A. et al. Reliability of the Spanish version of a brief questionnaire on patient satisfaction with gastrointestinal endoscopy. Rev. esp. enferm. dig. [online]. 2005, vol.97, n.8, pp.554-561. ISSN 1130-0108.

Background: there has not been a validated questionnaire available in Spanish to evaluate patient satisfaction with gastrointestinal endoscopy. Our aim was to evaluate the external validity and internal consistency of the Spanish version of a questionnaire on patient satisfaction with gastrointestinal endoscopy elaborated by the American Society for Gastrointestinal Endoscopy. Design: prospective questionnaire validation study. Patients and methods: a total of 485 consecutive patients referred to two different hospitals for endoscopy were interviewed by telephone. Internal consistency was studied using Cronbach's alfa test and corrected item-total correlations (CITC). External validity was determined using a mailed questionnaire completed by 185 patients -correlations between telephone and postal responses were calculated, as well as the correlation with the total score obtained. Results: Cronbach´s alfa was 0.82 and mean CITC was 0.59. Weighted kappa values for the same questionnaire items performed by telephone or mail varied between 0.51 and 0.81. Total score correlation was 0.78. Internal consistency and external validity were not affected by differences in the administration of the questionnaire (mail or by telephone), different interviewers, type of endoscopy, or source of patients. Conclusions: the Spanish version of the ASGE questionnaire on satisfaction with endoscopy is valid, reliable, and reproducible.

Keywords : Gastrointestinal endoscopy; Patient satisfaction; Health care evaluation mechanisms; Questionnaires; Validation studies.

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