Comparison of study patient demographic data
| Variables | Recurrent Tumor | Treatment Effect | P Value |
|---|---|---|---|
| No. of male patients | 19 (53.3%) | 27 (61.9%) | .272 |
| No. of female patients | 20 (46.7%) | 25 (38.1%) | |
| Age (yr)a | 47.4 ± 6.7 | 51.5 ± 8.5 | .395 |
| Mean gamma knife dose (Gy)a | 17.5 ± 0.7 | 17.3 ± 0.5 | .872 |
| Target volume (mL)a | 6.52 ± 7.01 | 5.97 ± 5.19 | .312 |
| Time interval between GKRS and detection of a new or enlarging, contrast-enhancing lesion (wk)a | 34.7 ± 15.4 | 37.9 ± 17.3 | .159 |
| Time interval between GKRS and the last follow-up (wk)a | 85.1 ± 22.1 | 89.2 ± 27.2 | .576 |
↵a Data are means.