Post-Stroke Insomnia Increased the Risk of Cognitive Impairments: A Hospital-Based Retrospective Cohort Study

Insomnia is a common sleep complaint among patients who had a stroke and has been recognized as an independent risk factor for cognitive impairment. However, the relationship between poststroke insomnia and cognitive impairment over time is under-researched. Therefore, we examined the association be...

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Bibliographic Details
Published in:Behavioral sleep medicine 2023-11, Vol.21 (6), p.802-810
Main Authors: Hasan, Faizul, Muhtar, Muhammad Solihuddin, Wu, Dean, Lee, Hsin-Chien, Fan, Yen-Chun, Chen, Ting-Jhen, Chiu, Hsiao-Yean
Format: Article
Language:English
Subjects:
Cognitive ability
Cognitive impairment
Cohort analysis
Insomnia
Medical diagnosis
Stroke
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Summary:Insomnia is a common sleep complaint among patients who had a stroke and has been recognized as an independent risk factor for cognitive impairment. However, the relationship between poststroke insomnia and cognitive impairment over time is under-researched. Therefore, we examined the association between poststroke insomnia and the risk of cognitive impairment. Stroke participants who had a stroke and were 20 years and older This multicenter hospital-based retrospective cohort study with a 13-year follow-up period (2004-2017). The diagnosis of stroke, insomnia, and cognitive impairment was based on the International Classification of Diseases. The study participants who experienced a stroke were divided into two cohorts: those who also had insomnia and those who did not have insomnia. A Cox proportional-hazards regression model was used. A total of 1,775 patients with a mean age of 67.6 years were included. Of these patients, 146 and 75 patients were diagnosed with insomnia and cognitive impairment during the follow-up period, respectively. The cumulative incidence of cognitive impairment in the stroke with insomnia cohort was significantly lower than that in the stroke without insomnia cohort (log-rank test, P < .001). The adjusted hazard ratio and 95% confidence interval (CI) of the stroke with insomnia cohort indicated a higher risk of cognitive impairment compared with the stroke without insomnia cohort (adjusted hazard ratio: 2.38; 95% CI: 1.41-4.03). Patients who had a stroke and were diagnosed with insomnia exhibited a substantial increased risk of cognitive impairment over time.
ISSN:1540-2002
1540-2010
DOI:10.1080/15402002.2023.2165491