Table 3 Results of the univariate and multivariate analyses of certain factors for overall survival rates after palliative RT in125 patients with available scores of STAS
Univariate | Multivariate | ||||
|---|---|---|---|---|---|
MST | OR | ||||
n | (mos) | p | (95% CI) | p | |
Gender | |||||
M | 76 | 4.5 | 0.20 | - | - |
F | 49 | 6.3 | |||
Age | |||||
< 70 | 47 | 5.6 | 0.65 | - | - |
≧ 70 | 78 | 4.1 | |||
Performance status | |||||
3 | 98 | 6.3 | 0.026 | 1.9 | 0.064 |
4 | 27 | 2.0 | (1.0-3.9) | ||
Concomitant disease* | |||||
Yes | 14 | 26.8 | 0.011 | 4.5 | 0.0084 |
No | 111 | 3.8 | (1.5-13.7) | ||
No. of tumor lesion | |||||
1-3 | 25 | 6.3 | 0.041 | 1.4 | 0.42 |
≧ 4 | 100 | 3.6 | (0.6-3.1) | ||
Irradiated site | |||||
Bone | 71 | 4.7 | 0.94 | - | - |
Others | 54 | 4.4 | |||
Target of palliative RT | |||||
Metastatic tumor | 97 | 3.8 | 0.14 | - | - |
Primary tumor | 28 | 6.3 | |||
Primary tumor site | |||||
Lung | 51 | 3.4 | 0.020 | 2.2 | 0.011 |
Others | 74 | 6.1 | (1.2-3.9) | ||
Total RT dose (Gy) | |||||
<30 | 20 | 0.7 | 0.080 | 1.1 | 0.91 |
≧ 30 | 105 | 4.9 | (0.4-2.7) | ||
Completion of planned RT dose | |||||
Yes | 109 | 5.0 | 0.0025 | 2.0 | 0.170 |
No | 16 | 0.5 | (0.7-5.2) | ||
Chemotherapy | |||||
Yes | 25 | 5.6 | 0.82 | - | - |
No | 100 | 3.9 | |||
Improvement of STAS score | |||||
Yes | 76 | 6.4 | 0.0005 | 3.7 | <0.0001 |
No | 49 | 2.4 | (2.0-6.6) | ||