Table 2.
Meta-analysis results.
| Outcome | Trial | Groups | Overall effect | Heterogeneity | ||||
|---|---|---|---|---|---|---|---|---|
| Su | SRS | Effect estimate | CI 95% | P-value | I2 (%) | P-value | ||
| PND | 5 | 16 | 22 | 0.89 | −1.92 to 0.14 | 0.09 | −68.54 | 0.71 |
| ReBl | 6 | 31 | 41 | 0.24 | −0.80 to 1.28 | 0.65 | 38.64 | 0.18 |
| LaReBl | 5 | 3 | 8 | 0.57 | −1.67 to 0.53 | 0.31 | 43.31 | 0.12 |
| ReInt | 4 | 6 | 8 | −1.29 | −3.22 to 0.64 | 0.19 | 48.02 | 0.10 |
| Mortal | 6 | 7 | 2 | −0.21 | −1.67 to 1.25 | 0.78 | −89.42 | 0.76 |
I2 shows the percentage of total variation across studies that is due to heterogeneity rather than chance; CI, confidence interval; mortal, postoperative mortality; PND, permanent neurologic deficit; LaReBl, late rebleeding; ReInt, reintervention; ReBl, rebleeding; Su, surgical; SRS, radiosurgery.