Abstract:
The objective of this cross-sectional and analytical study was to determine the prevalence of and factors associated with excessive daytime sleepiness (EDS) and sleep attack (SA) in Thai patients with Parkinson's disease (PD). One hundred and sixty PD patients attended the study during January to June, 2017 at Chulalongkorn Center of Excellence for Parkinsons Disease and Related disorders, King Chulalongkorn Memorial Hospital. Epworth Sleep Scale (ESS) was used for evaluating the EDS and the presence of SA was determined from the patients interview. PD patients had the average age (±SD) of 64.03 ± 10.97 years, disease duration (±SD) of 9.20 ± 5.14 years and 51.25% of PD patients was male .The prevalence of EDS was 28.75% (95%Cl: 22-36) and of SA was 9.38% (95%Cl: 5-14). The EDS was independently associated with age (OR: 1.08, 95% CI: 1.02-1.14), Hoehn & Yahr stage (OR: 3.70, 95% CI: 1.68-8.15), dopamine agonist levodopa equivalent daily dose (DALEDD) (OR: 1.01, 95% CI: 1.003-1.012) and benzodiazepine (OR: 0.20, 95% CI: 0.06-0.65). Sleep attack was independently associated with Hoehn & Yahr stage (OR: 2.50, 95% CI:1.11-5.64), DALEDD (OR: 1.006, 95% CI: 1.0005-1.01) and sleep duration at night (OR: 0.63, 95% CI: 0.46-0.87). Therefore, PD patients who have the significant risk factors of EDS or SA should be monitored for the presence of EDS or SA.