Table 4.
Multivariate Analysis of Prognostic Factor for 69 Patients who were Treated with Organ Preservation
| Hazard ratio (95%CI) | P-value | |
|---|---|---|
| ECOGa 2 vs 0-1 N stage | 2.48 (1.19-5.17) | 0.016 |
| N stage | ||
| N0 | Ref (1) | |
| N1 | 0.70 (0.22-2.19) | 0.545 |
| N2 | 0.49 (0.15-1.61) | 0.240 |
| N3 | 0.98 (0.35-2.71) | 0.961 |
| Group stage 4 VS 3 Vocal cord inv.b | 1.33 (0.64-2.77) | 0.442 |
| Vocal cord inv.b | ||
| None | Ref (1) | |
| Unilateral | 0.13 (0.02-0.70) | 0.017 |
| Bilateral | 0.19 (0.03-0.94) | 0.042 |
| UAOc vs none | 1.03 (0.44-2.38) | 0.936 |
| Dose | ||
| 61-70 Gy | Ref (1) | |
| 45-50 Gy | 1.40 (0.52-3.73) | 0.496 |
| 51-60 Gy | 1.53 (0.18-12.50) | 0.690 |
a
, Eastern Cooperative Oncology group (ECOG) performance status scale;
b
, vocal cord involvement;
c
, upper airway obstruction