Table 1 Patient and treatment characteristics
Characteristic | Lower BED Group (≤57 Gy) | Higher BED Group (>57 Gy) | P |
|---|---|---|---|
Patients(n) | 70 | 135 | Â |
Age(years) | Â | Â | Â |
Median | 62 | 60 | 0.574 |
Range | 38-83 | 35-81 | Â |
Gender | Â | Â | 0.713 |
Male | 57(81.4)* | 107(79.3) | Â |
Female | 13(18.6) | 28(20.7) | Â |
KPS | Â | Â | Â |
Median | 80 | 80 | 0.163 |
Range | 60-100 | 60-100 | Â |
Weight loss>5% | Â | Â | 0.178 |
Yes | 21(30.0) | 29(21.5) | Â |
No | 49(70.0) | 106(78.5) | Â |
LDH | Â | Â | 0.517 |
≤220 IU/L | 35(43.1) | 34(35.3) |  |
>220 IU/L | 25(26.4) | 78(22.6) | Â |
Unknown | 10(30.5) | 23(42.1) | Â |
ISN | Â | Â | 0.190 |
Yes | 8(11.4) | 25(18.5) | Â |
No | 62(88.6) | 110(81.5) | Â |
CHT cycles | Â | Â | 0.620 |
Median | 4 | 6 | Â |
Range | 3-8 | 3-7 | Â |
SER | Â | Â | 0.951 |
Median | 81 | 72 | Â |
Range | 34-262 | 30-236 | Â |
BED(Gy) | Â | Â | 0.000 |
Median | 53.6 | 58.5 | Â |
Range | 41.3-56.9 | 57.1-66.1 | Â |
TRT fractions | Â | Â | 0.000 |
Once-daily | 52(74.3) | 23(17.0) | Â |
Twice-daily | 18(25.7) | 112(83.0) | Â |
TRT technique | Â | Â | 0.418 |
2D | 52(74.3) | 107(79.3) | Â |
3D | 18(25.7) | 28(20.7) | Â |
Size of TRT field(cm3)# | Â | Â | 0.722 |
Median | 132 | 137 | Â |
Range | 54-210 | 46-228 | Â |
PCI | Â | Â | 0.199 |
Yes | 11(15.7) | 13(9.6) | Â |
No | 59(84.3) | 122(90.4) | Â |