PET stage | Primary treatment modality | n | HR and 95% CI | P |
Stage I/II | Surgery | 18 | 1 | 0.569 |
Surgery followed by RT or chemoradiation therapy | 29 | 0.6 (0.2–1.6) | ||
RT or chemoradiation therapy | 6 | 1.0 (0.2–4.9) | ||
Stage III | Surgery | 8 | 1 | 0.133 |
Surgery followed by RT or chemoradiation therapy | 16 | 0.4 (0.1–1.0) | ||
RT or chemoradiation therapy | 20 | 0.7 (0.3–1.5) |