Dementia-Free Survival and Risk Factors for Dementia in a Hospital-Based Korean Parkinson's Disease Cohort
Journal of Clinical Neurology
; : 21-26, 2017.
Article
en En
| WPRIM
| ID: wpr-154751
Biblioteca responsable:
WPRO
ABSTRACT
BACKGROUND AND PURPOSE: Few studies of dementia in Parkinson's disease (PD) have had long-term follow-ups. Moreover, information on the duration from the onset to the development of dementia in patients with PD is lacking. The aim of this study was to determine the median dementia-free survival time from the onset of PD to the development of dementia. METHODS: In total, 1,193 Korean patients with PD were recruited and assessed at regular intervals of 3–6 months. We interviewed the patients and other informants to identify impairments in the activities of daily living. The Hoehn and Yahr stage and scores on the Unified Parkinson's Disease Rating Scale and Mini Mental State Examination were evaluated annually. We used Kaplan-Meier survival analysis to estimate the cumulative proportion of dementia-free patients over time. Risk factors predicting dementia were also evaluated using Cox proportional-hazards regression models. RESULTS: The median dementia-free survival time in the Korean PD population was 19.9 years. Among the 119 patients who subsequently developed dementia, the mean duration from the onset of PD to the development of dementia was 10.6 years. A multivariate analysis identified age at onset and education period as the significant predictors of dementia. CONCLUSIONS: This is the first report on dementia-free survival in patients with PD based on longitudinal data analysis from the disease onset. The median dementia-free survival time in Korean PD patients was found to be longer than expected.
Palabras clave
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Enfermedad de Parkinson
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Actividades Cotidianas
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Análisis Multivariante
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Factores de Riesgo
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Estadística como Asunto
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Estudios de Cohortes
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Estudios de Seguimiento
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Edad de Inicio
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Demencia
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Educación
Tipo de estudio:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Journal of Clinical Neurology
Año:
2017
Tipo del documento:
Article