Table 3.
Uni- and multivariate analyses using clinical factors for relapse-free survival
| Factors | Favorable | Unfavorable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|---|
| Hazard ratio (95 % CI) |
p value | Hazard ratio (95 % CI) |
p value | |||
| Age | <58 | ≥58 | 0.981 (0.198–4.867) | 0.981 | 1.189 (0.233–6.075) | 0.835 |
| Clinical T factor | T1 | T2, T3 | 2.283 (0.459–11.346) | 0.313 | 0.911 (0.135–6.144) | 0.924 |
| Clinical N factor | N0 | N1, N2, N3 | 1.655 (0.303–9.041) | 0.561 | 1.097 (0.193–6.229) | 0.917 |
| Nuclear grade | I,II | III | 3.531 (0.646–19.294) | 0.145 | 2.553 (0.433–15.050) | 0.301 |
| Revised SUVmax | ≤6.0 | >6.0 | 7.596 (1.527–37.785) | 0.013 | 6.436 (0.963–42.991) | 0.055 |
SUVmax was identified as a significant predictor of relapse-free survival (p = 0.013 and p = 0.055, respectively)