Beihai Ge1, Xiaomei Guo. 1. Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Internal Medicine, People's Hospital of Chibi City, Chibi, China.
Abstract
BACKGROUND: There is uncertainty about the relationship between sleep duration and stroke risk. AIM: We aimed to clarify the relationship between sleep duration and risk of stroke by using epidemiological evidence. METHODS: We searched MEDLINE and EMBASE to identify all studies that might be looking at the association between sleep duration and stroke, including both cohort and cross-sectional studies. Pooled hazard ratios (HRs) and odds ratios (ORs) were calculated through a random-effects model. RESULTS: Our study included a total of 12 cohort studies and 6 cross-sectional studies. Pooled results from the cohort studies showed that short sleep duration was associated with a higher risk for stroke [HR, 1.13; 95% confidence interval (CI) 1.02-1.25], and that long sleep duration also increases the risk of having a stroke (HR, 1.40; 95% CI, 1.16-1.64). Results from cross-sectional studies confirmed the relationship between stroke and inappropriate sleep duration, either too little sleep or too much. For short sleep duration, the OR was 1.71 (1.39-2.02); for long sleep duration, the OR was 2.12 (1.51-2.73). CONCLUSION: Both short and long sleep durations have a significant association with higher risk of stroke.
BACKGROUND: There is uncertainty about the relationship between sleep duration and stroke risk. AIM: We aimed to clarify the relationship between sleep duration and risk of stroke by using epidemiological evidence. METHODS: We searched MEDLINE and EMBASE to identify all studies that might be looking at the association between sleep duration and stroke, including both cohort and cross-sectional studies. Pooled hazard ratios (HRs) and odds ratios (ORs) were calculated through a random-effects model. RESULTS: Our study included a total of 12 cohort studies and 6 cross-sectional studies. Pooled results from the cohort studies showed that short sleep duration was associated with a higher risk for stroke [HR, 1.13; 95% confidence interval (CI) 1.02-1.25], and that long sleep duration also increases the risk of having a stroke (HR, 1.40; 95% CI, 1.16-1.64). Results from cross-sectional studies confirmed the relationship between stroke and inappropriate sleep duration, either too little sleep or too much. For short sleep duration, the OR was 1.71 (1.39-2.02); for long sleep duration, the OR was 2.12 (1.51-2.73). CONCLUSION: Both short and long sleep durations have a significant association with higher risk of stroke.
Authors: Nathaniel F Watson; M Safwan Badr; Gregory Belenky; Donald L Bliwise; Orfeu M Buxton; Daniel Buysse; David F Dinges; James Gangwisch; Michael A Grandner; Clete Kushida; Raman K Malhotra; Jennifer L Martin; Sanjay R Patel; Stuart F Quan; Esra Tasali Journal: J Clin Sleep Med Date: 2015-08-15 Impact factor: 4.062
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Authors: Nathaniel F Watson; M Safwan Badr; Gregory Belenky; Donald L Bliwise; Orfeu M Buxton; Daniel Buysse; David F Dinges; James Gangwisch; Michael A Grandner; Clete Kushida; Raman K Malhotra; Jennifer L Martin; Sanjay R Patel; Stuart F Quan; Esra Tasali Journal: Sleep Date: 2015-08-01 Impact factor: 5.849
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