Table 3 Univariate analysis of prognostic factors
Characteristics | n | 2-year overall survival rate | P-value |
|---|---|---|---|
Age in years | 0.285 | ||
> 60 | 30 | 42.2% | |
≤ 60 | 36 | 33.9% | |
Primary | 0.218 | ||
Larynx | 19 | 22.3% | |
Hypo-pharynx | 40 | 42.1% | |
Cervicalesophagus | 7 | 57.1% | |
Previous treatment | 0.692 | ||
1 course without surgery | 30 | 30.9% | |
1 course with surgery | 26 | 43.0% | |
Multiple courses | 10 | 46.7% | |
Time interval between radiation and salvage surgery | 0.065 | ||
≤ 6 | 14 | 11.3% | |
> 6 | 52 | 41.6% | |
Previous chemo- or targeted therapy | 0.579 | ||
No | 46 | 40.3% | |
Yes | 20 | 31.4% | |
Skin invasion | 0.135 | ||
No | 52 | 41.9% | |
Yes | 14 | 19.8% | |
Pre-op suspicious carotid artery invasiona | 0.009 | ||
No | 53 | 42.8% | |
Yes | 13 | 8.5% | |
Intra-op carotid artery invasionb | 0.000 | ||
No | 40 | 54.3% | |
Yes | 26 | 6.2% | |
Pre-op suspicious prevertebral invasiona | 0.001 | ||
No | 55 | 46.0% | |
Yes | 11 | 0 | |
Intra-op prevertebral invasionb | 0.327 | ||
No | 39 | 44.1 | |
Yes | 27 | 24.4 | |
Pre-op positive cervical nodes | 0.834 | ||
No | 48 | 38.4% | |
Yes | 18 | 34.4% |