Table 5. Cox regression analysis the effect of prestroke aspirin use on hemorrhagic transformation.
| Factor | HR | 95% CI | P value |
|---|---|---|---|
| Age | 0.74 | 0.62–1.26 | 0.533 |
| Diabetes mellitus | 0.91 | 0.87–1.69 | 0.385 |
| Hypertension | 1.02 | 0.97–1.33 | 0.132 |
| Hemoglobin A1C | 0.79 | 0.61–1.18 | 0.627 |
| NIHSS scores on admission | 1.32 | 1.01–2.06 | 0.039 |
| Previous statins | 0.88 | 0.81–1.42 | 0.624 |
| Hyperlipidemia | 0.68 | 0.85–1.21 | 0.522 |
| CE subtype | 1.41 | 1.05–2.56 | 0.016 |
| Thrombolysis | 1.44 | 1.13–3.34 | 0.011 |
| Prestroke aspirin | 1.38 | 1.08–3.04 | 0.022 |
NIHSS, National Institutes of Health Stroke Scale; CE, Cardioembolism; HR, hazard ratio; CI, confidence interval. HR for continuous variables means per 1-Standard Deviation increase.