Table 3.
Multivariable Cox regression analysis for cardiovascular events after multiple imputation.
| Variables | Hazard ratio | 95% Confidence interval | p value |
|---|---|---|---|
| Myocardial infarction | |||
| Restfulness from sleep good | 0.89 | 0.83–0.95 | < 0.001 |
| Age, years | 1.06 | 1.06–1.07 | < 0.001 |
| Sex (man) | 2.43 | 2.20–2.68 | < 0.001 |
| Obesity | 1.26 | 1.15–1.38 | < 0.001 |
| High waist circumference | 1.06 | 0.97–1.17 | 0.213 |
| Hypertension | 1.71 | 1.58–1.84 | < 0.001 |
| Diabetes mellitus | 1.67 | 1.51–1.85 | < 0.001 |
| Dyslipidemia | 1.65 | 1.54–1.78 | < 0.001 |
| Cigarette smoking | 1.88 | 1.75–2.01 | < 0.001 |
| Alcohol drinking | 0.66 | 0.62–0.72 | < 0.001 |
| Angina pectoris | |||
| Restfulness from sleep good | 0.85 | 0.83–0.87 | < 0.001 |
| Age, years | 1.05 | 1.05–1.05 | < 0.001 |
| Sex (man) | 1.09 | 1.06–1.12 | < 0.001 |
| Obesity | 1.11 | 1.07–1.15 | < 0.001 |
| High waist circumference | 1.15 | 1.11–1.19 | < 0.001 |
| Hypertension | 1.57 | 1.53–1.62 | < 0.001 |
| Diabetes mellitus | 1.34 | 1.29–1.40 | < 0.001 |
| Dyslipidemia | 1.21 | 1.18–1.24 | < 0.001 |
| Cigarette smoking | 1.04 | 1.01–1.07 | 0.003 |
| Alcohol drinking | 0.94 | 0.92–0.97 | < 0.001 |
| Stroke | |||
| Restfulness from sleep good | 0.85 | 0.82–0.88 | < 0.001 |
| Age, years | 1.07 | 1.07–1.08 | < 0.001 |
| Sex (man) | 0.98 | 0.94–1.02 | 0.318 |
| Obesity | 1.05 | 0.99–1.10 | 0.091 |
| High waist circumference | 1.04 | 0.99–1.09 | 0.129 |
| Hypertension | 1.90 | 1.82–1.97 | < 0.001 |
| Diabetes mellitus | 1.35 | 1.27–1.43 | < 0.001 |
| Dyslipidemia | 1.10 | 1.06–1.14 | < 0.001 |
| Cigarette smoking | 1.27 | 1.22–1.32 | < 0.001 |
| Alcohol drinking | 1.01 | 0.97–1.05 | 0.676 |
| Heart failure | |||
| Restfulness from sleep good | 0.86 | 0.84–0.88 | < 0.001 |
| Age, years | 1.05 | 1.05–1.05 | < 0.001 |
| Sex (man) | 1.04 | 1.01–1.07 | 0.004 |
| Obesity | 1.19 | 1.15–1.23 | < 0.001 |
| High waist circumference | 1.13 | 1.09–1.17 | < 0.001 |
| Hypertension | 1.94 | 1.89–1.99 | < 0.001 |
| Diabetes mellitus | 1.32 | 1.27–1.38 | < 0.001 |
| Dyslipidemia | 1.08 | 1.06–1.11 | < 0.001 |
| Cigarette smoking | 1.08 | 1.05–1.11 | < 0.001 |
| Alcohol drinking | 0.97 | 0.94–0.99 | 0.013 |
| Atrial fibrillation | |||
| Restfulness from sleep good | 0.93 | 0.89–0.97 | 0.002 |
| Age, years | 1.08 | 1.08–1.08 | < 0.001 |
| Sex (Man) | 2.38 | 2.24–2.54 | < 0.001 |
| Obesity | 1.09 | 1.02–1.16 | 0.008 |
| High waist circumference | 1.35 | 1.27–1.44 | < 0.001 |
| Hypertension | 1.57 | 1.50–1.66 | < 0.001 |
| Diabetes mellitus | 1.12 | 1.03–1.21 | 0.008 |
| Dyslipidemia | 0.83 | 0.79–0.87 | < 0.001 |
| Cigarette smoking | 0.99 | 0.94–1.04 | 0.727 |
| Alcohol drinking | 1.16 | 1.11–1.22 | < 0.001 |
Multivariable Cox regression analysis for cardiovascular events after multiple imputation showed that good restfulness from sleep was independently associated with the lower incidence of cardiovascular events including myocardial infarction, angina pectoris, stroke, heart failure, and atrial fibrillation.