New psychometric data from the Spanish versions of the Glasgow Dyspepsia Severity Score and the Dyspepsia-Related Health Scale measures

  1. Miren Orive Calzada 1
  2. Ane Antón 1
  3. Nerea González 1
  4. Begoña Matellanes Febrero 2
  5. Angel Padierna 1
  6. José Luis Cabriada Nuño 1
  7. Aitor Orive Calzada 3
  8. Víctor Orive Cura 4
  9. José María Quintana López 1
  1. 1 Hospital Galdakao-Usansolo
  2. 2 Universidad de Deusto
    info

    Universidad de Deusto

    Bilbao, España

    ROR https://ror.org/00ne6sr39

  3. 3 Hospital Universitario de Araba
  4. 4 Hospital Universitario de Basurto
    info

    Hospital Universitario de Basurto

    Bilbao, España

    ROR https://ror.org/00j4pze04

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Journal:
Revista Española de Enfermedades Digestivas

ISSN: 2340-416,  1130-0108

Year of publication: 2018

Volume: 110

Issue: 1

Pages: 10-18

Type: Article

DOI: 10.17235/REED.2018.5438/2017 DIALNET GOOGLE SCHOLAR

More publications in: Revista Española de Enfermedades Digestivas

Sustainable development goals

Abstract

Background and objective: There are no structural abnormalities in functional dyspepsia, therefore it is essential to have a viable questionnaire to measure treatment outcome according to patient perception. The aim of the study was to extensively document psychometric characteristics of the Glasgow Dyspepsia Severity Score and the Dyspepsia-Related Health Scale that are currently available in Spanish. Methods: Patients with functional dyspepsia (n = 158) were recruited from a randomized trial that assessed standard vs. standard and psychological treatment. Participants had completed the validation questionnaires and the Medical Outcome Study Short-form 36. Reliability (Cronbach’s alpha), validity (Confirmatory Factor Analysis, convergent and known group validity) and responsiveness (minimal clinically important difference) were analyzed. Results: A Confirmatory Factor Analysis of the Glasgow Dyspepsia Severity Score showed a one-factor solution model, but a low Cronbach’s alpha (0.61). With regard to the Dyspepsia-Related Health Scale, the Cronbach’s alpha (0.80-0.97) and Confirmatory Factor Analysis supported a model with four inter-correlated dimensions and suggested a need to improve the “Satisfaction with dyspepsia-related health” dimension (Cronbach’s alpha < 20). Finally, the global scores for both the Glasgow Dyspepsia Severity Score and the Dyspepsia-Related Health Scale were responsive at six months post-treatment, with a minimal clinically important difference of 4 and 6, respectively. Conclusions: Our findings support the continued application of the Dyspepsia-Related Health Scale and the need to improve the “Satisfaction with dyspepsia-related health” dimension. Although the Glasgow Dyspepsia Severity Score is a promising questionnaire, further review of the content is required to eliminate and add items in order to provide greater consistency to the evaluated construct.

Data source: Dialnet