Characteristics | Univariable analysis | P | Multivariate analysis | P |
---|---|---|---|---|
HR (95% CI) | HR (95% CI) | |||
Age (years) | Â | 0.034 | Â | 0.040 |
 < 45 | 1 (reference) |  | 1 (reference) |  |
 ≥ 45 | 2.277 (1.064-4.873) |  | 2.293 (1.037-5.074) |  |
Sex | Â | 0.964 | Â | Â |
 Male | 1 (reference) |  |  |  |
 Female | 0.978 (0.373-2.562) |  |  |  |
rEBV DNA (copies/ml) | Â | 0.691 | Â | Â |
 Undetectable | 1 (reference) |  |  |  |
 Detectable | 1.165 (0.548-2.475) |  |  |  |
rLactate dehydrogenase (U/L) | Â | 0.620 | Â | Â |
 < 240 | 1 (reference) |  |  |  |
 ≥ 240 | 0.603 (0.082-4.446) |  |  |  |
rC-reactive protein (mg/L) | Â | < 0.001 | Â | 0.003 |
 < 10.5 | 1 (reference) |  | 1 (reference) |  |
 ≥ 10.5 | 4.465 (2.064-9.660) |  | 3.552 (1.560-8.087) |  |
rNLR | Â | 0.344 | Â | Â |
 < 3.7 | 1 (reference) |  |  |  |
 ≥ 3.7 | 1.445 (0.675-3.095) |  |  |  |
rT category# | Â | 0.062 | Â | Â |
 rT0-2 | 1 (reference) |  |  |  |
 rT3-4 | 2.122 (0.962-4.683) |  |  |  |
rN category# | Â | 0.372 | Â | Â |
 rN0 | 1 (reference) |  |  |  |
 rN1-3 | 0.716 (0.344-1.49) |  |  |  |
rStage# | Â | 0.133 | Â | Â |
 r0-rII | 1 (reference) |  |  |  |
 rIII-rIVA | 1.745 (0.843-3.608) |  |  |  |
rT category* | Â | 0.010 | Â | Â |
 rT0-2 | 1 (reference) |  |  |  |
 rT3-4 | 2.684 (1.263-5.703) |  |  |  |
rN category* | Â | 0.701 | Â | Â |
 rN0 | 1 (reference) |  |  |  |
 rN1-3 | 0.868 (0.423-1.784) |  |  |  |
rStage* | Â | 0.023 | Â | 0.036 |
 r0-rII | 1 (reference) |  | 1 (reference) |  |
 rIII-rIVA | 2.600 (1.143-5.916) |  | 2.662 (1.066-6.649) |  |
Treatment | Â | 0.019 | Â | 0.316 |
 Palliative treatment | 1 (reference) |  | 1 (reference) |  |
 Re-radiotherapy+Salvage Surgery | 0.379 (0.168-0.853) |  | 0.653 (0.284-1.502) |  |
PET/CT SUVmax | Â | 0.015 | Â | 0.179 |
 < 11.9 | 1 (reference) |  | 1 (reference) |  |
 ≥11.9 | 2.464 (1.195-5.078) |  | 1.730 (0.777-3.852) |  |