Poor sleep quality was common among people with Parkinson's disease
A review estimated how often Parkinson's patients had poor sleep quality. Rates varied with study setting, patient selection, and the definitions used.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Poor sleep quality was common across the Parkinson's populations included in this review. Rates differed with patient sources and diagnostic thresholds, making the pooled estimate a limited guide to any particular clinic. A study-level meta-regression linked later Parkinson's onset with poorer sleep quality; it does not establish an individual patient's risk or explain causation.
Studies used differing diagnostic cutoffs and patient sources. The authors also identify a need for research in lower-income settings to assess how widely the findings apply. The abstract does not report assessment timeframes.
What researchers found
Pooled prevalence of poor sleep quality
Across included Parkinson's populations; no treatment comparator. Prevalence estimate, 95% CI 54.26–61.88%; assessment timeframes were not reported.
What prevalence describes
Prevalence describes how common a condition is in the populations examined. This review combined studies of sleep quality among people already diagnosed with Parkinson's disease; it did not test whether an intervention improved their sleep.
Why estimates differed
Higher rates appeared in studies using lower diagnostic thresholds and in certain regions and patient sources. These differences matter when interpreting the pooled average, because study methods and populations were related to the rates reported.
The original publication
Poor sleep quality among patients with Parkinson's disease: a meta-analysis and systematic review.
Si TL, Wang YY, Li JX et al.
Front Psychiatry · 2025
- PubMed ID
- 40740260
- Record checked
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