Background: Post-stroke sleep disturbances (PSSD) are common and associated with various adverse outcomes. However, PSSD in the subacute stages of stroke have been scarcely studied. We aimed to evaluate the characteristics of and the factors related to PSSDs in stroke patients 3 months post-stroke.
Methods: A total of 199 patients were evaluated for PSSD at 3 months after stroke. The quality of nighttime sleep and excessive daytime sleepiness (EDS) were assessed using the Verran Snyder-Halpern sleep scale and Epworth Sleepiness Scale, respectively. Presence of motor dysfunction and post-stroke pain, post-stroke depression, fatigue, and social support were evaluated.
Results: Eighty eight patients (44.2%) had poor quality of night time sleep. Twenty eight patients (14.4%) reported EDS. Poor quality of sleep was independently associated with depression (p = 0.044) and EDS (p = 0.041) whereas fatigue (p = 0.000) and poor nighttime sleep (p = 0.045) were independently associated with EDS. Post-stroke pain and social support showed no association with PSSD.
Conclusions: We found that PSSD 3 month post-stroke is common. Although causality remained to be determined, depression and nighttime sleep disturbances were related, whereas fatigue and nighttime sleep disturbances were related to EDS.