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The impact of non‐motor symptoms on health‐related quality of life of patients with Parkinson's disease
Abstract
Background: Non‐motor symptoms are detrimental to health‐related quality of life (HRQoL) of Parkinson's disease patients. In this study, the Non‐Motor Symptoms Scale (NMSS) was used to assess the impact of the non‐motor symptoms on HRQoL of Parkinson's disease patients. Methods: In a multicenter, international, cross sectional study on 411 Parkinson's disease patients, the NMSS was applied along with clinical (Hoehn and Yahr staging and SCOPA‐Motor) and HRQoL measures (PDQ‐39, and EQ‐5D). Prevalence of non‐motor symptoms was determined also through the NMSS. The association of NMSS and SCOPA‐Motor with HRQoL measures and the differences in HRQoL scores between patients with and without non‐motor symptoms in each NMSS domain were estimated by non‐parametric statistics. Predictors of HRQoL were sought through multiple linear regression analyses. Results: Nocturia (68.4% of the sample), fatigue (65.9%), and dribbling saliva (56.7%), were the most frequent complaints. Total NMSS score: (1) showed a higher correlation coefficient (rS = 0.70) with the PDQ‐39 Summary Index (SI) than SCOPA‐Motor (rS = 0.58); (2) showed high‐moderate correlation (rS = 0.60 − 0.38) with all PDQ‐39 domains; and (3) was the best predictor of HRQoL as measured by the PDQ‐39 SI. For each NMSS domain, patients with symptoms had significantly worse HRQoL scores than patients without symptoms. Discussion: To our knowledge, this is the first study to determine in a holistic manner the impact of the non‐motor symptoms on HRQoL of Parkinson's disease patients. The results show that non‐motor symptoms have, as a whole, a greater impact on HRQoL than motor symptoms and non‐motor symptoms progression contributes importantly to HRQoL decline in patients with Parkinson's disease. © 2011 Movement Disorder Society
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Metadata
- Authors
- Martinez‐Martin, P., Rodriguez‐Blazquez, C., Kurtis, M. M., Chaudhuri, K. R., & on Behalf of the NMSS Validation Group
- Venue
- Movement Disorders
- Publisher
- Wiley
- Published
- 2011-01-24
- Volume
- 26
- Issue
- 3
- Pages
- 399-406
- ISSN
- 0885-3185 (ISSN-L)
- 1531-8257
- OpenAlex
- W2085838792
- Cited by
- 989
- References
- 10
- FWCI
- 28.17
- Type
- journal article
- Language
- en
- Open access
- closed
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