Table 3.
Unadjusted Outcome Variable Characteristics by Treatment Technique
| Variable (n = number of patients) | Type | Median (Mean) | Min | Max | Standard Deviation | IQR | Overall P value | Pairwise P value |
|---|---|---|---|---|---|---|---|---|
| Median Overall Survival (months) (n = 3190) |
Conventional | 10.4 (10) | 5.3 | 16 | 2.6 | 3.6 | <.0001 | <.01 vs SRS <.01 vs FSRT |
| SRS | 11.5 (12.1) | 6.5 | 30 | 4.3 | 3.0 | <.01 vs FSRT | ||
| FSRT | 10.8 (10.6) | 6.7 | 18 | 2.14 | 1.4 | - | ||
| Radionecrosis (%) (n = 2860) | Conventional | 0 (0.9) | 0 | 10.3 | 2.1 | 1.0 | <.0001 | <.01 vs SRS <.01 vs FSRT |
| SRS | 8.0 (10.6) | 0 | 31.3 | 9.1 | 17.7 | <.01 vs FSRT | ||
| FSRT | 0 (3.3) | 0 | 28.0 | 5.5 | 5.0 | - |
Abbreviations: IQR, interquartile range; SRS, stereotactic radiosurgery; FSRT, Fractionated stereotactic radiotherapy.