Table 6 Hazard ratios (95% CI) for ischemic stroke according to sleep duration stratified by age.

From: Long Sleep Duration and Risk of Ischemic Stroke and Hemorrhagic Stroke: the Kailuan Prospective Study

 

Sleep duration

<6 h

6–8 h

>8 h

Age ≥ 60 years

 Cases (%)

114 (5.29)

982 (5.53)

28 (8.78)

Model 1 †

0.93 (0.76–1.13)

reference

1.51 (1.04–2.20)

Model 2 ‡

0.93 (0.76–1.13)

reference

1.52 (1.04–2.22)

Model3 §

0.94 (0.77–1.14)

reference

1.38 (0.94–2.03)

Model 4 ※

0.94 (0.77–1.14)

reference

1.36 (0.93–2.00)

Age < 60 year

 Cases (%)

96 (2.13)

1258 (1.82)

26 (2.04)

Model 1 †

0.99 (0.80–1.22)

reference

1.25 (0.85–1.85)

Model 2 ‡

0.95 (0.77–1.17)

reference

1.20 (0.82–1.78)

Model 3 §

0.88 (0.71–1.09)

reference

1.13 (0.76–1.67)

Model 4 ※

0.87 (0.70–1.08)

reference

1.13 (0.76–1.67)

  1. CI, confidence interval.
  2. †Model 1 was stratified by hospitals, and adjusted for age and sex.
  3. ‡Model 2 was stratified by hospitals, and adjusted for as model 1 plus marital status, family per member monthly income, education level, smoking status, drinking status, physical activity, and family history of stroke.
  4. §Model 3 was stratified by hospitals, and adjusted for the variables in Model 2 plus body mass index, systolic blood pressure, diastolic blood pressure, fasting blood glucose, total cholesterol, hypotensive drug use, lipid-lowering drug use, hypoglycemic drug use, history of myocardial infarction, and snoring status.
  5. ※Model 4 was stratified by hospitals, and adjusted for the variables in Model 3 plus high sensitive C-reactive protein, and atrial fibrillation.
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