Por favor, use este identificador para citar o enlazar este Item:http://hdl.handle.net/20.500.12105/11083
Título
Rasch analysis of the living with chronic illness scale in Parkinson's disease.
Autor(es)
Ambrosio, Leire | Rodriguez-Blazquez, Carmen ISCIII | Ayala, Alba ISCIII | Forjaz, Maria João ISCIII
Fecha de publicación
2020-09-15
Cita
BMC Neurol 2020 Sep 15;20(1):346.
Idioma
Inglés
Tipo de documento
journal article
Resumen
Neurologists play an essential role in facilitating the patient's process of living with Parkinson's disease (PD). The Living with Chronic Illness Scale-PD (LW-CI-PD) is a unique available clinical tool that evaluates how the patient is living with PD. The objective of the study was to analyse the LW-CI-PD properties according to the Rasch model.
An open, international, cross-sectional study was carried out in 324 patients with Parkinson's disease from four Latin American countries and Spain. Psychometric properties of the LW-CI-PD were tested using Rasch analysis: fit to the Rasch model, item local independency, unidimensionality, reliability, and differential item functioning by age and gender.
Original LW-CI-PD do not fit Rasch model. Modifications emerged included simplifying the response scale and deleting misfit items, the dimensions Acceptance, Coping and Integration showed a satisfactory fit to the Rasch model, with reliability indices greater than 0.70. The dimensions Self-management and Adjustment to the disease did not reach fit to the Rasch model.
Suggestions for improving the LW-CI-PD include a multidimensional and shorter scale with 12 items grouped in three subscales with a simpler response scheme. The final LW-CI-PD Scale version is a reliable scale, with good internal construct validity, that provides Rasch transformed results on linear metric scale.
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DOI
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