ViDa1: The Development and Validation of a New Questionnaire for Measuring Health-Related Quality of Life in Patients with Type 1 Diabetes
Alvarado-Martel, Dácil (Complejo Hospitalario Univesitario Insular Materno-Infantil de Gran Canaria)
Ruiz Fernández, M. Angeles (Universidad Nacional de Educación a Distancia (Espanya))
Cuadrado Vigaray, Maribel (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Carrillo, Armando (Complejo Hospitalario Univesitario Insular Materno-Infantil de Gran Canaria)
Boronat, Mauro (Complejo Hospitalario Univesitario Insular Materno-Infantil de Gran Canaria)
Montesdeoca, Ana Expósito (Instituto Universitario de Investigaciones Biomédicas y Sanitarias. Universidad de Las Palmas de Gran Canaria)
Nattero Chávez, Lía (Hospital Universitario Ramón y Cajal (Madrid))
Pozuelo Sánchez, Maite (Hospital Universitario Ramón y Cajal (Madrid))
López Quevedo, Pino (Hospital Universitario de Gran Canaria Dr. Negrín)
Santana Suárez, Ana D. (Hospital Universitario de Gran Canaria Dr. Negrín)
Hillman, Natalia (Hospital Universitario La Paz (Madrid))
Subias, David (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Martin Vaquero, Pilar (D-Médical Clinic, Madrid)
Sáez de Ibarra, Lourdes (Hospital Universitario La Paz (Madrid))
Mauricio Puente, Dídac (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
de Pablos Velasco, Pedro (Instituto Universitario de Investigaciones Biomédicas y Sanitarias. Universidad de Las Palmas de Gran Canaria)
Nóvoa, Francisco J. (Complejo Hospitalario Univesitario Insular Materno-Infantil de Gran Canaria)
Wägner, Ana M. (Complejo Hospitalario Univesitario Insular Materno-Infantil de Gran Canaria)
Universitat Autònoma de Barcelona

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 [(2(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.
Note:	IGTP
Note:	Altres ajuts: Funding was provided by the Canarian Agency for Research,Innovation and Information Society (ACIISI) (DA predoctoralfellowship TESIS20120050) and the V Guido Ruffino Grantfor Research in Therapeutic Education for Diabetes (SpanishDiabetes Society 2015)
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Health-related quality of life ; Type 1 diabetes ; Questionnaire ; Validation ; Patients ; Patient-reported ; Outcome, patient centered research
Published in:	Frontiers in psychology, Vol. 8 Núm. 904 (2017) , p. 1-14, ISSN 1664-1078

DOI: 10.3389/fpsyg.2017.00904
PMID: 28620331

14 p, 538.5 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Parc Taulí Research and Innovation Institute (I3PT
Articles > Research articles
Articles > Published articles