Table 3.
Univariate Analysis of Factor that Affected Laryngeal Preservation
| Variables | Median survival mo.) | P-value | |
|---|---|---|---|
| Group stage | III IV |
21.9 (0.35,43.44) 5.4 (1.05,9.74) |
0.046 |
| Volume | <10ml >=10ml unknown |
35.4 (5.14,65.65) 1.3 (0.35,2.25) |
0.005 |
| Cord Involvement |
No Unilateral Bilateral |
15.5 (0.90,30.09) 11.7 (6.60,16.79) 0.5 |
0.016 |
| N stage | N0 N1 N2 N3 |
12.3 (6.50,18.09) 16.9 (0-36.25) Not reach 1.3 (0.92,1.68) |
0.008 |
| Dose | 45-50 Gy 51-60 Gy 61-70 Gy |
2.3 (0.34,4.26) 0.5 19.2 (7.63,30.77) |
<0.001 |
| Treatment Break |
None ≤ 1 wk >1-2 wk |
12.3 (2.71,21.88) 11 (0,23.16) 1.1 |
0.017 |