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Self-perceived quality of life among patients with Alzheimer's disease: Two longitudinal models of analysis
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The objective was to analyze the factors that influence self-perceived quality of life (QoL) in patients with Alzheimer's disease (AD), contrasting two different longitudinal models. A total of 127 patients were followed up over 24 months. The instruments applied were: Quality of Life in Alzheimer's Disease scale (QoL-AD), Geriatric Depression Scale-15, Anosognosia Questionnaire-Dementia, Disability Assessment in Dementia, Neuropsychiatric Inventory, and the Mini Mental State Examination. Two models for grouping patients were tested: 1) Baseline score on the QoL-AD (QoL-Baseline), and 2) Difference in QoL-AD score between baseline and follow-up (QoL-Change). Generalized estimating equations (GEE) were used to analyze longitudinal data, and multinomial regression analyses were performed. Over the follow-up period the QoL-Baseline model showed greater variability between groups (Wald χ2 = 172.3, p < 0.001) than did the QoL-Change model (Wald χ2 = 1.7, p = 0.427). In the QoL-Baseline model the predictive factors were greater depression (odds ratio [OR] = 1.20; 95% CI: 1.00-1.45) and lower functional ability (OR = 0.92; 95% CI: 0.85-0.99) for the Low QoL group (< 33 QoL-AD), and less depression (OR = 0.68; 95% CI: 0.52-0.88), more anosognosia (OR = 1.07; 95% CI: 1.01-1.13), and fewer neuropsychiatric symptoms (OR = 0.95; 95% CI: 0.91-0.99) for the High-QoL group (>37 QoL-AD). The model based on baseline scores (QoL-Baseline) was better than the QoL-Change model in terms of identifying trajectories and predictors of QoL in AD.
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CONDE SALA, Josep lluís, TURRÓ-GARRIGA, Oriol, PORTELLANO ORTIZ, Cristina, VIÑAS-DIEZ, Vanesa, GASCÓN-BAYARRI, Jordi, REÑÉ RAMÍREZ, Ramon. Self-perceived quality of life among patients with Alzheimer's disease: Two longitudinal models of analysis. _Journal of Alzheimer's Disease_. 2016. Vol. 52, núm. 3, pàgs. 999-1012. [consulta: 23 de gener de 2026]. ISSN: 1387-2877. [Disponible a: https://hdl.handle.net/2445/107269]