ViDa1 : The development and validation of a new questionnaire for measuring health-related quality of life in patients with type 1 diabetes
Alvarado-Martel, D. (Universidad de Las Palmas de Gran Canaria)
Ruiz Fernández, M.A. (Universidad Nacional de Educación a Distancia (Espanya))
Cuadrado Vigaray, Maribel (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Carrillo, A. (Complejo Hospitalario Universitario Insular Materno Infantil)
Boronat, M. (Universidad de Las Palmas de Gran Canaria)
Montesdeoca, A.E. (Universidad de Las Palmas de Gran Canaria)
Chávez, L.N. (Hospital Universitario Ramón y Cajal (Madrid))
Sánchez, M.P. (Hospital Universitario Ramón y Cajal (Madrid))
Quevedo, P.L. (Hospital Universitario de Gran Canaria Dr. Negrín)
Suárez, A.D.S. (Hospital Universitario de Gran Canaria Dr. Negrín)
Hillman, N. (Hospital Universitario La Paz (Madrid))
Subias, David
(Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Vaquero, P.M. (Centro Médico D-Médical)
de Ibarra, L.S. (Hospital Universitario La Paz (Madrid))
Mauricio Puente, Dídac
(Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
de Pablos-Velasco, P. (Hospital Universitario de Gran Canaria Dr. Negrín)
Nóvoa, F.J. (Universidad de Las Palmas de Gran Canaria)
Wägnerb, A.M. (Universidad de Las Palmas de Gran Canaria)
Universitat Autònoma de Barcelona.
Departament de Medicina
Date: |
2017 |
Abstract: |
This study describes the development of a new questionnaire to measure health-related quality of life (HRQoL) in patients with type 1 diabetes (the ViDa1 questionnaire) and provides information on its psychometric properties. For its development, open interviews with patients took place and topics relevant to patients' HRQoL were identified and items were generated. Qualitative analysis of items, expert review, and refinement of the questionnaire followed. A pilot study (N = 150) was conducted to explore the underlying structure of the 40-item ViDa1 questionnaire. A Principal Component Analysis (PCA) was performed and six of the items that did not load on any of the factors were eliminated. The results supported a four-dimensional structure for ViDa1, the dimensions being Interference of diabetes in everyday life, Self-care, Well-being, and Worry about the disease. Subsequently, the PCA was repeated in a larger sample (N = 578) with the reduced 34-item version of the questionnaire, and a Confirmatory Factor Analysis (CFA) was performed (N = 428). Overall fit indices obtained presented adequate values which supported the four-factor model initially proposed [(X(df=554)= 2601. 93) (p < 0. 001); Root Mean Square Error of Approximation = 0. 060 (CI = 0. 056 -0. 064)]. As regards reliability, the four dimensions of the ViDa1 demonstrated good internal consistency, with Cronbach's alphas ranging between 0. 71 and 0. 86. Evidence of convergent-discriminant validity in the form of high correlations with another specific HRQoL questionnaire for diabetes and low correlations with other constructs such as self-efficacy, anxiety, and depression were presented. The ViDa1 also discriminated between different aspects of clinical interest such as type of insulin treatment, presence of chronic complications, and glycemic control, temporal stability, and sensitivity to change after an intervention. In conclusion, the ViDa1 questionnaire presents adequate psychometric properties and may represent a good alternative for the evaluation of HRQoL in type 1 diabetes. |
Rights: |
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Language: |
Anglès |
Document: |
Article ; recerca ; Versió publicada |
Subject: |
Health-related quality of life ;
Patient centered research ;
Patients ;
Patient-reported outcome ;
Questionnaire ;
Type 1 diabetes ;
Validation |
Published in: |
Frontiers in psychology, Vol. 8 Núm. MAY (31 2017) , p. 904, ISSN 1664-1078 |
DOI: 10.3389/fpsyg.2017.00904
PMID: 28620331
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Record created 2024-07-08, last modified 2024-08-05