Table 1 Baseline characteristics and analysis of prognostic factors for LRFS in 126 patients
| Factor |
Number (%) |
Median (months) |
1-year LRFS (%) |
3-year LRFS (%) | HR | 95% CI | P |
|---|---|---|---|---|---|---|---|
| Sex | |||||||
| Male | 90 (71.4) | 13.7 | 58.9 | 20.0 | 1.23 | 0.83 to 1.83 | 0.296 |
| Female | 36 (28.6) | 10.6 | 47.2 | 19.4 | |||
| Age at diagnosis (years) | |||||||
| < 60 | 58 (46.0) | 15.5 | 67.2 | 22.4 | 1.33 | 0.94 to 1.90 | 0.108 |
| ≥ 60 | 68 (54.0) | 10.6 | 45.6 | 17.6 | |||
| Tumor location | |||||||
| Upper thoracic | 53 (42.1) | 13.0 | 54.7 | 22.6 | 1.12 | 0.87 to 1.46 | 0.515 |
| Middle thoracic | 55 (43.6) | 14.0 | 56.4 | 21.8 | |||
| Lower thoracic | 18 (14.3) | 9.0 | 50.0 | 16.7 | |||
| Differentiation | |||||||
| Well | 29 (23.0) | 13.7 | 65.5 | 20.7 | 0.97 | 0.76 to 1.25 | 0.677 |
| Moderate | 68 (54.0) | 12.5 | 51.7 | 27.6 | |||
| Poor | 29 (23.0) | 12.1 | 51.5 | 16.2 | |||
| T stage | |||||||
| T2 | 58 (46.0) | 15.5 | 67.2 | 29.3 | 1.45 | 1.14 to 1.85 | 0.007 |
| T3 | 46 (36.5) | 10.1 | 43.5 | 15.2 | |||
| T4 | 22 (17.5) | 10.5 | 45.5 | 13.6 | |||
| Lymph nodes | |||||||
| Negative | 46 (36.5) | 13.0 | 58.7 | 21.7 | 1.14 | 0.79 to 1.64 | 0.493 |
| Positive | 80 (63.5) | 12.5 | 52.5 | 18.8 | |||
| 7th AJCC stage | |||||||
| II | 60 (47.6) | 19.0 | 63.3 | 31.1 | 1.85 | 1.27 to 2.69 | 0.001 |
| III | 66 (52.4) | 10.6 | 47.0 | 10.6 | |||