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Surgery success rate and complication incidence (cases, %).
| Complication incidence | ||||||
|---|---|---|---|---|---|---|
| Groups | Success rate | Rebleeding | Cerebrovascular spasm | Infection | Cerebrospinal fluid leakage | Total |
| Control (n=25) | 24 (96.0) | 2 (8.0) | 5 (20.0) | 1 (4.0) | 1 (4.0) | 9 (36.0) |
| Observation (n=31) | 28 (90.3) | 1 (3.2) | 2 (6.5) | 0 | 1 (3.2) | 4 (12.9) |
| χ2 | 0.089 | 4.142 | ||||
| P-value | 0.766 | 0.042 | ||||
