|
Sex (women vs. men)
|
3.308
|
1.468–7.454
|
0.004
|
3.354
|
1.367–8.231
|
0.008
|
|
Age (≥39.5 vs. <39.5 years)
|
2.302
|
0.763–6.947
|
0.139
|
–
|
–
|
–
|
|
Initial radiation dose (≥74.68 vs. <74.68 Gy)
|
1.836
|
0.672–5.018
|
0.236
|
–
|
–
|
–
|
|
Recurrent stage (I vs. II vs. III vs. IV)
|
–
|
–
|
0.999
|
–
|
–
|
–
|
|
Interval of recurrence (≥25.5 vs. <25.5 months)
|
1.435
|
0.623–3.207
|
0.396
|
–
|
–
|
–
|
|
CCT during re-irradiation (yes vs. no)
|
0.672
|
0.283–1.594
|
0.367
|
–
|
–
|
–
|
|
Necrosis before re-irradiation (yes vs. no)
|
3.136
|
1.374–7.160
|
0.007
|
3.469
|
1.382–8.710
|
0.008
|
|
Re-irradiation GTV dose (≥ 67 vs. < 67 Gy)
|
1.509
|
0.691–3.296
|
0.302
|
–
|
–
|
–
|
|
Mean re-irradiation dose (≥71.97 vs. < 71.97 Gy)
|
2.481
|
1.118–5.509
|
0.026
|
1.713
|
0.691–4.248
|
0.246
|
|
Re-irradiation fractionated dose (≥ 2.3 vs. < 2.3 Gy)
|
–
|
–
|
0.999
|
–
|
–
|
–
|
|
Duration of re-irradiation (≥ 49.5 vs. < 49.5 days)
|
2.268
|
0.907–5.672
|
0.08
|
–
|
–
|
–
|
|
Accumulated total GTV dose (≥141.5 vs. <141.5 Gy)
|
3.220
|
1.108–9.357
|
0.032
|
3.763
|
1.041–13.611
|
0.043
|
|
Recurrent tumor volume (≥25.38 vs. <25.38 cm3)
|
4.467
|
1.302–15.322
|
0.017
|
6.063
|
1.561–23.543
|
0.009
|
|
BMI (≥19.8 vs. <19.8)
|
1.421
|
0.547–3.691
|
0.470
|
–
|
–
|
–
|
