Cox's proportional-hazards model (multivariate analysis)
| Hazard ratio (95% CI) | p‐value | |
| Age | 1.14 (1.06–1.21) | 0.000 |
| AHI | 1.05 (1.01–1.08) | 0.004 |
| MCA involvement | 2.86 (1.04–7.84) | 0.04 |
| Coronary disease | 3.25 (1.05–10.03) | 0.04 |
CI: confidence interval
AHI: apnoea/hypopnoea index
MCA: middle cerebral artery