| Univariate analysis | Multivariate analysis | ||||
---|---|---|---|---|---|---|
Characteristic | MST (mos) | 5-yr OS (%) | p-value | HR | 95Â % CI | p-value |
Gender | Â | Â | 0.431 | Â | Â | Â |
 Male | 23 | 27.4 |  |  |  |  |
 Female | 28 | 24.5 |  |  |  |  |
Age | Â | Â | 0.834 | Â | Â | Â |
  < 60 years | 24 | 26.5 |  |  |  |  |
  ≥ 60 years | 21 | 27.6 |  |  |  |  |
Weight loss |  |  | 0.292 | 1.01 | 0.61–1.66 | 0.977 |
  < 5 % | 24 | 28.7 |  |  |  |  |
  ≥ 5 % | 24 | 20.2 |  |  |  |  |
Smoking index | Â | Â | 0.399 | Â | Â | Â |
  ≤ 400 | 26 | 26.5 |  |  |  |  |
  > 400 | 20 | 27.4 |  |  |  |  |
Pretreatment hemoglobin | Â | Â | 0.580 | Â | Â | Â |
  < 120 g/L | 35 | - |  |  |  |  |
  ≥ 120 g/L | 24 | 26.8 |  |  |  |  |
Pretreatment KPS |  |  | 0.096 | 0.68 | 0.34–1.37 | 0.285 |
  < 80 | 16 | 9.1 |  |  |  |  |
  ≥ 80 | 24 | 28.0 |  |  |  |  |
Stage | Â | Â | 0.303 | Â | Â | Â |
 IIIa | 27 | 31.1 |  |  |  |  |
 IIIb | 23 | 24.9 |  |  |  |  |
Histology subtype | Â | Â | 0.848 | Â | Â | Â |
 SCC | 24 | 28.0 |  |  |  |  |
 Non-SCC | 24 | 25.1 |  |  |  |  |
Pretreatment CEA |  |  | 0.076 | 0.67 | 0.45–0.99 | 0.047 |
  < 5 ng/ml | 27 | 30.9 |  |  |  |  |
  ≥ 5 ng/ml | 23 | 18.3 |  |  |  |  |
Radiotherapy technique |  |  | 0.128 | 1.09 | 0.66–1.79 | 0.743 |
 3D-CRT | 18 | 16.2 |  |  |  |  |
 IMRT | 25 | 30.1 |  |  |  |  |
Radiotherapy dose |  |  | 0.014 | 0.66 | 0.42–1.04 | 0.071 |
  ≥ 60 Gy | 25 | 29.5 |  |  |  |  |
  < 60 Gy | 19 | 14.9 |  |  |  |  |
Concurrent chemotherapy | Â | Â | Â | Â | Â | Â |
 EP | 27 | 29.8 | 0.365 |  |  |  |
 PC | 19 | 24.0 |  |  |  |  |
 Others | 25 | - |  |  |  |  |
Treatment modality |  |  | .012 | 0.61 | 0.42–0.88 | 0.008 |
 CRT + CCT | 27 | 30.4 |  |  |  |  |
 CRT | 16 | 22.5 |  |  |  |  |
Response |  |  | 0.035 | 0.62 | 0.40–0.97 | 0.036 |
 CR + PR | 24 | 29.7 |  |  |  |  |
 SD | 21 | 10.6 |  |  |  |  |