Table 5.
Associations between clinical-pathological parameters and 5-year OS and DFS
| Clinical–pathological parameters | 5-year OS (%) | P value | 5-year DFS (%) | P value |
|---|---|---|---|---|
| Age (year) | 0.581 | 0.752 | ||
| ≥60 | 64.3 | 61.6 | ||
| <60 | 71.9 | 68.8 | ||
| Sex | 0.984 | 0.287 | ||
| Male | 69.1 | 70.3 | ||
| Female | 68.5 | 59.5 | ||
| Histology | 0.024* | 0.254 | ||
| AD | 72.9 | 68.6 | ||
| SQ | 69.3 | 66.3 | ||
| Other | 28.6 | 33.3 | ||
| Tumor location | 0.450 | 0.310 | ||
| Central | 70.0 | 70.0 | ||
| Peripheral | 68.6 | 64.8 | ||
| Tumor size | 0.357 | 0.527 | ||
| >2 cm | 65.8 | 62.4 | ||
| ≤2 cm | 75.7 | 72.9 | ||
| Lymphadenectomy | 0.071 | 0.082 | ||
| LA | 80.4 | 75.5 | ||
| LS | 61.2 | 59.5 | ||
| Node metastases | <0.001** | 0.001** | ||
| Yes | 32.3 | 32.3 | ||
| No | 78.8 | 75.0 |
OS overall survival, DFS disease-free surviva, AD adenocarcinoma, SQ Squamous cell carcinoma, LA radical systematic mediastinal lymphadenectomy, LS lymph node sampling
* P < 0.05, **P < 0.001