Table 4.
Estimation of hazard ratio, β coefficient, and risk score based on a multivariate Cox proportional risk model
HR | β coefficient | P value | Risk score | |
---|---|---|---|---|
Sex | ||||
Female | 1 | 1 | 0 | |
Male | 1.406 (0.85–2.324) | 0.34 | 0.185 | 12 |
Age group, years | ||||
≤ 55 | 1 | 1 | 0 | |
> 55 | 1.414 (0.973–2.055) | 0.346 | 0.069 | 12 |
Staging | ||||
III | 1 | 1 | .. | 0 |
IVA | 1.396 (0.958–2.036) | 0.334 | 0.083 | 12 |
IVB | 1.793 (1.087–2.958) | 0.584 | 0.022 | 21 |
Smoking | ||||
No | 1 | 1 | 0 | |
Yes | 1.150 (0.792–1.670) | 0.14 | 0.463 | 5 |
EBV-DNA levels | ||||
≤ 1500 | 1 | 1 | 0 | |
> 1500 | 1.848 (1.297–2.633) | 0.614 | 0.001 | 22 |