Journal
BRAIN SCIENCES
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/brainsci11020273
Keywords
nonadherence; Parkinson's disease; unified Parkinson's disease rating scale; German Stendal Adherence with Medication Score; quality of life; motor impairment
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Funding
- Bundesministerium fur Bildung und Forschung grant [01GY1804]
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The study found that nonadherence is a common issue among Parkinson's disease (PD) patients, with factors such as male gender, cognitive decline, increased non-motor symptoms, comorbidities, and higher levels of depression associated with nonadherence. Quality of life was also correlated with similar factors but was not directly linked to nonadherence.
Nonadherence is a growing issue in the treatment of Parkinson's disease (PD). Many factors are known to influence nonadherence, but little is known about the influence of quality of life (QoL). Detailed clinical data were obtained from 164 patients with PD using the Parkinson's Disease Questionnaire-39 (PDQ-39) and the German Stendal Adherence with Medication Score (SAMS). Descriptive statistics were used to identify reasons for nonadherence, and multivariable linear models were used to study associations between QoL and clinical parameters as well as nonadherence. Multivariate analysis of variance (MANOVA) and multivariate analysis of covariance (MANCOVA) were used to study the effect of the SAMS on PDQ domains and other medical covariates. The results showed that 10.4% (n = 17) of patients were fully adherent, 66.4% (n = 109) were moderately nonadherent, and 23.2% (n = 38) were nonadherent. Nonadherence was associated with male gender, lower Montreal Cognitive Assessment (MoCA) score, higher non-motor symptoms questionnaire (NMS-Quest) score, greater number of medications per day (an indicator of comorbidity), and higher Beck Depression Inventory (BDI) score. QoL was correlated with male gender, lower MoCA score, higher NMS-Quest score, more comorbidities, and higher BDI score, but was not correlated with nonadherence.
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