Table 3.
Survival rate and multivariable analysis for overall survival of patients in different risk groups
| Risk group | Survival rate |
Multivariable analyses |
|||
|---|---|---|---|---|---|
| 3-Year | 5-Year | Adjusted HR | 95% CI | p-value | |
| Low-risk | 80.0 | 66.7 | Reference | ||
| Intermediate-risk | 54.9 | 41.3 | 2.24 | 1.33-3.75 | 0.002 |
| High-risk | 37.8 | 11.6 | 3.69 | 2.01-6.79 | < 0.001 |
Survival rate was calculated from Kaplan-Meier curve. Multivariable Cox regression model adjusted for age, sex, T category, N category, and pre-treatment Epstein-Barr virus DNA; palliative chemotherapy regimen, locoregional radiotherapy, and metastasis radiotherapy. CI, confidence interval.