Table 4:
Variable | Hazard Ratio | 95% CI (Lower) | 95% CI (Upper) | p-value |
---|---|---|---|---|
Age at Diagnosis | ||||
<50 | 1 | Reference | ||
≥50 | 1.045 | 0.627 | 1.743 | 0.865 |
Ethnicity | ||||
White | 1 | Reference | ||
Black | 0.790 | 0.372 | 1.677 | 0.540 |
Hispanic | 1.035 | 0.657 | 1.632 | 0.881 |
Asian/Indian | 0.501 | 0.179 | 1.405 | 0.501 |
KPS | ||||
≥70 | 1 | Reference | ||
<70 | 3.702 | 1.608 | 8.520 | 0.002 |
Extent of Surgical Resection | ||||
Gross Total Resection | 1 | Reference | ||
Subtotal Resection | 1.532 | 0.992 | 2.366 | 0.054 |
Biopsy | 2.209 | 1.129 | 4.320 | 0.021 |
RPA Class | ||||
III | 1 | Reference | ||
IV | 3.178 | 1.223 | 8.255 | 0.018 |
V/VI | 3.499 | 0.979 | 12.508 | 0.054 |
RT Technique | ||||
IMRT | 1 | Reference | ||
3D CRT | 0.618 | 0.363 | 1.055 | 0.078 |
2D | 2.261 | 0.278 | 18.402 | 0.446 |
RT Total Dose | ||||
<36 Gy | 3.978 | 1.836 | 8.621 | 0.001 |
36–54 Gy | 1.214 | 0.651 | 2.264 | 0.542 |
>54 Gy | 1 | Reference | ||
Laterality | ||||
Unilateral | 1 | Reference | ||
Bilateral | 1.468 | 0.908 | 2.372 | 0.117 |
Multicentricity | ||||
No | 1 | Reference | ||
Yes | 1.130 | 0.736 | 1.735 | 0.576 |
Temozolomide | ||||
Yes | 1 | Reference | ||
No | 3.908 | 1.526 | 10.008 | 0.004 |