Results of univariate analysis of 1,575 patients with NSCLC.
| Variable | Favorable factors | Unfavorable factors | P value |
|---|---|---|---|
| Age | <70 years | ≥70 years | 0.039 |
| Sex | Male | Female | 0.902 |
| Smoking history | Yes | No | 0.416 |
| Histologic type | Squamous carcinoma | Non-squamous carcinoma | 0.041 |
| Clinical stage | Stage I | Stage II | 0.000 |
| Stage I | Stage III | 0.000 | |
| Stage II | Stage III | 0.013 |