Sara Hassani MD, MHS, MSCR , Bruce Ovbiagele MD, MLS, MBA, MAS, MSc, FAHA , Daniela Markovic MS , Amytis Towfighi MD, FAHA
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引用次数: 0
Abstract
Background
Sleep duration is a key marker of ideal cardiovascular health in the American Heart Association’s new Life’s Essential 8 construct, but studies on outcomes in stroke survivors are scarce. We assessed the association between sleep duration and mortality among self-reported stroke survivors in a nationally representative U.S. sample.
Methods
Cross-sectional data (2005–2018) from the National Health and Nutrition Examination Surveys database in patients aged ≥18 (n=42,143) with a self-reported history of stroke (n=1,488) were linked to the 2019 National Death Index to determine the association between nightly sleep duration and mortality. Relationships between sleep duration (short: <7 hrs, normal: 7-8 hrs, long: >8 hrs) and demographic characteristics were assessed. Relationships between sleep duration and mortality (all-cause and cardiovascular causes) were evaluated adjusting for demographic and clinical variables, with multivariable Cox regressions.
Results
Among stroke survivors, prevalence of short sleep duration increased with younger age while prevalence of long sleep duration increased with older age (p<0.001). There were no significant sex differences in sleep duration. Long sleep duration was associated with higher all-cause mortality in the unadjusted model (HR 1.82, 1.44-2.31, p<0.0001). After adjustment for co-variates, (HR 1.36, 1.08-1.71, p = 0.01), the association attenuated, but remained significant (HR 1.30, 1.02-1.65, p = 0.03). Sensitivity analysis further verified the reliability of this conclusion. Short sleep duration was not associated with all-cause or cardiovascular mortality after adjusted analyses. There were no significant associations between long sleep duration and cardiovascular mortality.
Conclusion
Long sleep duration is independently associated with higher risk, all-cause mortality after stroke.
期刊介绍:
The Journal of Stroke & Cerebrovascular Diseases publishes original papers on basic and clinical science related to the fields of stroke and cerebrovascular diseases. The Journal also features review articles, controversies, methods and technical notes, selected case reports and other original articles of special nature. Its editorial mission is to focus on prevention and repair of cerebrovascular disease. Clinical papers emphasize medical and surgical aspects of stroke, clinical trials and design, epidemiology, stroke care delivery systems and outcomes, imaging sciences and rehabilitation of stroke. The Journal will be of special interest to specialists involved in caring for patients with cerebrovascular disease, including neurologists, neurosurgeons and cardiologists.