At 1 year (%) | At 2 years (%) | At 3 years (%) | P | |
---|---|---|---|---|
Type of irradiation | ||||
WBI alone | 40 | 17 | 11 | |
RS/FSRT alone | 45 | 12 | 7 | 0.63 |
Age | ||||
≤ 60 years | 52 | 17 | 10 | |
> 60 years | 32 | 10 | 7 | 0.019 |
Gender | ||||
Female | 44 | 18 | 13 | |
Male | 41 | 8 | n.a. | 0.20 |
ECOG performance score | ||||
0–1 | 50 | 17 | 12 | |
2 | 26 | 7 | 2 | <0.001 |
Nature of tumor | ||||
Breast cancer | 62 | 32 | 19 | |
Non-small-cell lung cancer | 41 | 11 | 6 | |
Small-cell lung cancer | 70 | n.a. | n.a. | |
Kidney cancer | 31 | 21 | 21 | |
Melanoma | 27 | 6 | n.a. | |
Cancer of unknown primary | 47 | 0 | 0 | |
Gastrointestinal cancers | 28 | 0 | 0 | |
Gynecological cancers | 0 | 0 | 0 | <0.001 |
Brain metastases number | ||||
1 | 47 | 16 | 10 | |
2–3 | 37 | 12 | 7 | 0.06 |
Extra-cerebral spread | ||||
No | 54 | 17 | 11 | |
Yes | 31 | 11 | 7 | <0.001 |
Period from cancer detection to irradiation | ||||
≤ 15 months | 40 | 10 | 4 | |
> 15 months | 45 | 18 | 14 | 0.19 |
RPA-class | ||||
1 | 61 | 19 | 14 | |
2 | 31 | 11 | 5 | <0.001 |