Satisfaction with Life Scale (SLS-6): First validation study in Parkinson's disease population
Por:
Ambrosio L., Portillo M.C., Rodriguez-Blazquez C., Martínez-Castrillo J.C., Rodriguez-Violante M., Serrano-Dueñas M., Campos-Arillo V., Garretto N.S., Arakaki T., Álvarez M., Pedroso-Ibáñez I., Carvajal A., Martinez-Martin P.
Publicada:
1 ene 2016
Resumen:
Introduction To explore the psychometric attributes of a new Satisfaction with Life Scale (SLS-6) in a wide Spanish-speaking population with Parkinson's disease (PD). Methods This was an international, cross-sectional study. Several rater-based and patient-reported outcomes measures for evaluation of PD (e.g., Scales for Outcomes in Parkinson's Disease-Motor) and other constructs (e.g., Duke-UNC Functional Social Support Questionnaire, Scale for Living with Chronic Illness) were applied together with the SLS-6. Acceptability, scaling assumptions, reliability, precision, and construct validity were tested. Results The study included 324 patients from five countries, with age (mean ± standard deviation) 66.67 ± 10.68 years. None of the SLS-6 items had missing values and all acceptability parameters fulfilled the standard criteria. Scaling assumptions allowed the calculation of a summary index from items 2 to 6, complementary to the global evaluation (item 1). For these five items, Cronbach's alpha was 0.85; the corrected item–total correlation 0.53–0.73; inter-item correlation, 0.45–0.70, with an item homogeneity index of 0.55. The standard error of measurement, based on Cronbach's alpha for a single observation, was 3.48. SLS-6 correlations were moderate to strong (rs = 0.35) with the patient-reported outcomes and weak to moderate with the rater-based assessments used in the study. The SLS-6 total score was significantly different according to PD severity levels established according to Hoehn and Yahr staging, Clinical Impression of Severity Index, and Patient-Based Global Impression of Severity scale. Conclusion The results suggest that SLS-6 is an easy, feasible, acceptable, consistent, precise and valid measure to evaluate satisfaction with life in PD patients. © 2016 Elsevier Ltd
Filiaciones:
Ambrosio L.:
Faculty of Nursing, University of Navarre, C/ Irunlarrea, s/n, Edificio de los Castaños, Pamplona, Navarre, Spain
Portillo M.C.:
Faculty of Health Sciences, University of Southampton, Building 67, Highfield Campus University Road, Southampton, United Kingdom
Rodriguez-Blazquez C.:
National Centre of Epidemiology and CIBERNED, Carlos III Institute of Health, Av. Monforte de Lemos, 5, Madrid, Spain
Martínez-Castrillo J.C.:
Neurology Unit, Ramon y Cajal University Hospital, IRYCIS. Ctra. de Colmenar Viejo, Madrid, Spain
Rodriguez-Violante M.:
National Institute of Neurology and Neurosurgery, Movement Disorders Clinic, Insurgentes Sur 3877, Colonia La Fama, Mexico City, DF, Mexico
Serrano-Dueñas M.:
Movement Disorder and Biostatistics Units, Neurological Service, Carlos Andrade Marín Hospital, Ayacucho s/n y Av. 18 de Septiembre, Quito, Ecuador
Campos-Arillo V.:
Neuroscience Area, Vithas-Xanit International Hospital, Avenida de los Argonautas s/n, Benalmádena, Malaga, Spain
Garretto N.S.:
Department of Neurology, JM Ramos Mejia Hospital, Urquiza 609, Buenos Aires, Argentina
Arakaki T.:
Department of Neurology, JM Ramos Mejia Hospital, Urquiza 609, Buenos Aires, Argentina
Álvarez M.:
Department of Movement Disorders and Neurodegeneration, CIREN. Ave 25 # 15805, Cubanacán, Playa, La Habana, Cuba
Pedroso-Ibáñez I.:
Department of Movement Disorders and Neurodegeneration, CIREN. Ave 25 # 15805, Cubanacán, Playa, La Habana, Cuba
Carvajal A.:
Faculty of Nursing, University of Navarre, C/ Irunlarrea, s/n, Edificio de los Castaños, Pamplona, Navarre, Spain
Martinez-Martin P.:
Faculty of Health Sciences, University of Southampton, Building 67, Highfield Campus University Road, Southampton, United Kingdom
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