Factors correlated with excessive daytime sleepiness in patients with Parkinson's disease: A polysomnography study

Abstract

Objective: To explore the factors correlated with excessive daytime sleepiness (EDS) in patients with Parkinson's disease (PD). Methods: A total of 239 PD patients were divided into two groups based on the presence of EDS (Epworth Sleepiness Scale score≥10) (PD-EDS vs. PD-non-EDS). Participants underwent an extensive assessment to determine demographic features, disease severity, polysomnography characteristics, and nonmotor symptoms. Results: Of the 239 patients, 56 patients (23.4%) were classified as having PD combined with EDS. Binary logistic regression analysis showed that fatigue (Fatigue Severity Scale [FSS] score ≥4) (odds ratio [OR] [95% CI] = 4.897 [2.376–10.095], p