Table 3.
Multivariate analysis of patients from the Sun Yat-sen University Cancer Center
| HR (95% CI) | P-value | |
|---|---|---|
| Factors included in the best predictive model | ||
| The 8th AJCC/UICC N-classification | 1.968 (1.480–2.617) | < 0.001 |
| Age (per year increase) | 1.055 (1.032–1.079) | < 0.001 |
| GTVp (per cc increase) | 1.016 (1.009–1.023) | < 0.001 |
| LDH (per IU/L increase) | 1.005 (1.000–1.010) | 0.033 |
| BMI (per kg/m2 increase) | 0.921 (0.854–0.995) | 0.036 |
| Factors absent from the best predictive model | ||
| The 8th AJCC/UICC T-classification | 1.076 (0.720–1.607) | 0.721 |
| EBV DNA (< 103/103–104/104–105/105–106/≥ 106) | 1.033 (0.826–1.293) | 0.774 |
| Sex | 0.759 (0.430–1.337) | 0.339 |
| Histology | 0.714 (0.305–1.671) | 0.437 |
HR hazard ratio, CI confidence interval, AJCC American Joint Committee on Cancer, UICC Union for International Cancer Control, GTVp gross primary tumor volume, LDH lactate dehydrogenase, BMI body mass index