Low risk | Intermediate risk | High risk | |||||||
---|---|---|---|---|---|---|---|---|---|
Characteristic | HR | 95%CI | P value | HR | 95%CI | P value | HR | 95%CI | P value |
Age (years) | |||||||||
≤ 47 | Reference | Reference | Reference | ||||||
> 47 | 1.311 | 0.724–2.375 | 0.371 | 1.403 | 0.870–2.262 | 0.165 | 1.051 | 0.745–1.480 | 0.778 |
Gender | |||||||||
Male | Reference | Reference | Reference | ||||||
Female | 0.486 | 0211–1.118 | 0.089 | 0.657 | 0.361–1.194 | 0.168 | 1.527 | 0.948–2.461 | 0.082 |
Smoking | |||||||||
No smoking | Reference | Reference | Reference | ||||||
Smoking | 1.219 | 0.665–2.235 | 0.522 | 1.130 | 0.693–1.843 | 0.632 | 1.266 | 0.883–1.816 | 0.199 |
Family history | |||||||||
No | Reference | Reference | Reference | ||||||
Yes | 0.748 | 0.246–2.278 | 0.609 | 0.462 | 0.157–1.355 | 0.160 | 1.057 | 0.572–1.955 | 0.859 |
T stage | |||||||||
T1-T2 | Reference | Reference | Reference | ||||||
T3-T4 | 0.723 | 0.349–1.499 | 0.383 | 1.110 | 0.605–2.036 | 0.737 | 0.843 | 0.526–1.349 | 0.475 |
N stage | |||||||||
N0-N1 | Reference | Reference | Reference | ||||||
N2-N3 | 2.318 | 1.098–4.891 | 0.027 | 1.051 | 0.589–1.875 | 0.867 | 1.367 | 0.860–2.175 | 0.186 |
No. of metastatic organs | |||||||||
1 | – | – | Reference | ||||||
> 1 | – | – | – | – | – | – | 1.518 | 1.032–2.234 | 0.034 |
No. of metastatic tumor | |||||||||
≤ 5 | – | – | Reference | ||||||
> 5 | – | – | – | – | – | – | 1.564 | 0.955–2.562 | 0.076 |
EBV-DNA (Copies/ml) | |||||||||
≤ 25,000 | – | – | Reference | ||||||
> 25,000 | – | – | – | – | – | – | 1.127 | 0.745–1.707 | 0.571 |
Chemotherapy regimens | |||||||||
TPF | Reference | Reference | Reference | ||||||
TP | 0.717 | 0.294–1.749 | 0.465 | 0.770 | 0.386–1.537 | 0.459 | 0.818 | 0.500–1.341 | 0.426 |
PF | 0.814 | 0.336–1.971 | 0.648 | 0.619 | 0.295–1.300 | 0.205 | 0.962 | 0.584–1.583 | 0.878 |
GP | 0.922 | 0.379–2.241 | 0.858 | 0.925 | 0.486–1.759 | 0.812 | 0.700 | 0.417–1.174 | 0.176 |
Others | 1.696 | 0.439–6.550 | 0.444 | 0.859 | 0.316–2.333 | 0.766 | 0.688 | 0.258–1.837 | 0.455 |
LRRT | |||||||||
Non-LRRT | Reference | Reference | Reference | ||||||
LRRT | 0.490 | 0.232–0.960 | 0.042 | 0.582 | 0.357–0.947 | 0.029 | 0.718 | 0.499–1.033 | 0.074 |