Table 3.
Comparison of mortality risks between patients admitted for different stroke type with different comorbidity categories
| Comorbidity burdena | In-hospital Mortality | 7-day Mortality | ||||||
|---|---|---|---|---|---|---|---|---|
| Univariable Analysis | Multivariable Analysis | Univariable Analysis | Multivariable Analysis | |||||
| HR (95% CI) | P value | aHR (95% CI) | P value | HR (95% CI) | P value | aHR (95% CI) | P value | |
| Ischemic stroke | ||||||||
| None | 1.00 | 1.00 | 1.00 | |||||
| Moderate | 1.62 (1.14–2.30) | 0.007 | 1.57 (1.11–2.23) | 0.012 | 1.34 (0.84–2.13) | 0.215 | 1.27 (0.80–2.02) | 0.310 |
| Severe | 3.38 (2.27–5.04) | < 0.001 | 2.68 (1.79–4.00) | < 0.001 | 3.51 (2.10–5.87) | < 0.001 | 3.32 (2.02–5.45) | < 0.001 |
| Very severe | 3.95 (2.71–5.75) | < 0.001 | 3.86 (2.65–5.61) | < 0.001 | 3.59 (2.18–5.89) | < 0.001 | 3.32 (2.02–5.45) | < 0.001 |
| Hemorrhagic stroke | ||||||||
| None | 1 | 1 | 1.00 | 1.00 | ||||
| Moderate | 0.98 (0.26–3.70) | 0.975 | 0.92 (0.24–3.49) | 0.904 | 0.88 (0.18–4.38) | 0.880 | 0.80 (0.16–4.00) | 0.790 |
| Severe | 3.91 (1.45–10.56) | 0.007 | 3.97 (1.47–10.70) | 0.006 | 3.49 (1.07–11.44) | 0.039 | 3.51 (1.07–11.52) | 0.038 |
| Very severe | 3.88 (1.40–10.76) | 0.009 | 3.95 (1.42–10.99) | 0.008 | 4.78 (1.54–14.84) | 0.007 | 4.88 (1.57–15.14) | 0.006 |
aHR adjusted hazard ratio, HR hazard ratio
aFour categories of comorbidity were defined based on Charlson Comorbidity Index scores of 0 (none), 1 (moderate), 2 (severe), and 3 or more (very severe)