Table 4 Subgroup analyses of median survival time and survival rates among patients with different treatment modalities
Factor | Treatment modality | No | Median survival (months) | 1-year survival rate | 2-year survival rate | P value |
|---|---|---|---|---|---|---|
R0 | No radiotherapy | 12 | 17.1 | 66.7% | 33.3% | 0.355 |
Adjuvant radiotherapy | 10 | 16.7 | 70.0% | 40.0% | ||
R + | No radiotherapy | 8 | 10.5 | 37.5% | 12.5% | 0.012 |
Adjuvant radiotherapy | 7 | 28.9 | 85.7% | 64.3% | ||
T2 | No radiotherapy | 6 | —— | 33.3% | 16.7% | 0.092 |
Adjuvant radiotherapy | 2 | —— | —— | —— | ||
T3 or T4 | No radiotherapy | 14 | 16.8 | 64.3% | 21.4% | 0.037 |
Adjuvant radiotherapy | 15 | 26.8 | 80.0% | 53.3% | ||
Stage II | No radiotherapy | 5 | 24.3 | 80.0% | 40.0% | 0.053 |
Adjuvant radiotherapy | 3 | 48.2 | —— | —— | ||
Stage III | No radiotherapy | 15 | 12.7 | 46.7% | 6.7% | 0.017 |
Adjuvant radiotherapy | 14 | 21.6 | 78.6% | 40.0% | ||
N0 | No radiotherapy | 9 | 16.8 | 55.6% | 33.33% | 0.089 |
Adjuvant radiotherapy | 10 | 38.1 | 80.0% | 60.0% | ||
N + | No radiotherapy | 11 | 14.5 | 54.5% | 9.1% | 0.133 |
Adjuvant radiotherapy | 7 | 26.8 | 85.5% | 28.6% |