The results of the multivariate logistic regression model exploring the independent risk factors associated with a poor modified Rankin Scale (mRS) score in different subgroups
| Hematoma Volume=20–<40 mL (n=95) | Hematoma Volume=≥40–<80 mL (n=168) | Hematoma Volume ≥80 mL (n=41) | |||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | ||
| Surgical methods (reference is EE) | SA | 3.490 | 0.398 to 30.575 | 0.790 | 0.331 to 1.885 | 1.340 | 0.091 to 19.705 |
| OC | 2.750 | 0.129 to 58.585 | 1.266 | 0.332 to 4.825 | 0.478 | 0.078 to 2.940 | |
| Gender (reference is female) | Male | 0.561 | 0.152 to 2.064 | NA | NA | NA | NA |
| Consciousness (reference is drowsy) | Lethargic | NA | NA | 3.045 | 0.786 to 11.789 | NA | NA |
| Light coma | NA | NA | 2.590 | 0.663 to 10.123 | NA | NA | |
| Deep coma | NA | NA | 4.569 | 0.555 to 37.597 | NA | NA | |
| Smoking (reference is yes) | No | 4.287 | 0.431 to 42.672 | 1.919 | 0.767 to 4.801 | NA | NA |
| Herniation (reference is no) | Yes | NA | NA | 0.764 | 0.142 to 4.124 | NA | NA |
| Decompressive craniectomy (reference is no) | Yes | NA | NA | 2.690 | 0.807 to 8.970 | 1.902 | 0.365 to 9.902 |
| Lumbar puncture (reference is no) | Yes | NA | NA | 1.529 | 0.675 to 3.466 | 0.422 | 0.096 to 1.862 |
EE, endoscopic evacuation; NA, not applicable; OC, open craniotomy; SA, stereotactic aspiration.