| 5-year OS | 5-year LPFS | ||||||
---|---|---|---|---|---|---|---|---|
Prognostic factors | Modality | 95Â % CI | p value | Modality | 95Â % CI | p value | ||
 | HT | IMRT |  |  | HT | IMRT |  |  |
Resection-margin | 84.0Â % | 57.7Â % | 0.52 to 0.68, | 0.008 | 92.5Â % | 28.6Â % | 0.51 to 0.77 | 0.006 |
ECE | 76.6Â % | 31.7Â % | 0.39 to 0.65, | 0.007 | 54.0Â % | 64.1Â % | 0.39 to 0.65 | 0.942 |
PNI | 79.3Â % | 35.2Â % | 0.15 to 0.97 | 0.005 | 82.3Â % | 43.9Â % | 0.28 to 0.85 | 0.003 |
LVSI | 77.0Â % | 50.0Â % | 0.49 to 0.64 | 0.012 | 78.8Â % | 0.0Â % | 0.54 to 0.74 | 0.001 |
Two or more positive lymph nodes | 74.0Â % | 40.3Â % | 0.41 to 0.61 | 0.010 | 77.0Â % | 26.2Â % | 0.29 to 0.85 | 0.003 |
T3,4 | 72.8Â % | 38.7Â % | 0.39 to 0.73 | 0.017 | 79.5Â % | 39.8Â % | 0.25 to 1.02 | 0.005 |
 | Hazard ratio (HR)a | 95 % CI | P value | Hazard ratio (HR)a | 95 % CI | P value | ||
Modality HT vs IMRT | 0.32 | 0.15 to 0.67 | 0.002 | 0.21 | 0.08 to 0.59 | 0.003 |