At 1 year (%) | At 2 years (%) | At 3 years (%) | P | |
---|---|---|---|---|
Type of irradiation | ||||
WBI alone | 40 | 15 | 15 | |
RS/FSRT alone | 45 | 22 | 17 | 0.84 |
Age | ||||
≤ 60 years | 45 | 20 | 17 | |
> 60 years | 43 | 16 | 16 | 0.51 |
Gender | ||||
Female | 44 | 21 | 18 | |
Male | 42 | 15 | n.a. | 0.47 |
ECOG performance score | ||||
0–1 | 44 | 23 | 20 | |
2 | 42 | 0 | 0 | 0.05 |
Nature of tumor | ||||
Breast cancer | 58 | 28 | 28 | |
Non-small-cell lung cancer | 46 | 19 | 19 | |
Small-cell lung cancer | 50 | n.a. | n.a. | |
Kidney cancer | 39 | 20 | 20 | |
Melanoma | 24 | 9 | 0 | |
Cancer of unknown primary | 47 | 0 | 0 | |
Gastrointestinal cancers | 0 | 0 | 0 | |
Gynecological cancers | 0 | 0 | 0 | 0.014 |
Brain metastases number | ||||
1 | 50 | 26 | 26 | |
2–3 | 33 | 10 | 8 | <0.001 |
Extra-cerebral spread | ||||
No | 44 | 18 | 18 | |
Yes | 43 | 21 | 14 | 0.27 |
Period from cancer detection to irradiation | ||||
≤ 15 months | 36 | 10 | 10 | |
> 15 months | 50 | 26 | 22 | 0.05 |
RPA-class | ||||
1 | 45 | 21 | 21 | |
2 | 42 | 17 | 11 | 0.07 |