Table 1. Characteristics of the Patients.
| Characteristics | N = 247 |
|---|---|
| Age | |
| <65 | 122 (49.4) |
| ≥65 | 125 (50.6) |
| Gender | |
| Male | 154 (62.3) |
| Female | 93 (37.7) |
| Smoking habit | |
| No | 96 (38.9) |
| Yes | 151 (61.1) |
| Histology | |
| AC | 198 (80.2) |
| SCC | 49 (19.8) |
| Tumor differentiation | |
| Well/moderately | 199 (80.6) |
| Poorly | 48 (19.4) |
| p-TNM stage* | |
| Stage I | 147 (59.5) |
| Stage II | 48 (19.4) |
| Stage III | 52 (21.1) |
| Receiving adjuvant chemotherapy | |
| Yes | 37 (15.0) |
| No | 210 (85.0) |
| Vital status | |
| Alive | 146 (59.1) |
| Lung cancer-related death | 76 (30.8) |
| Other causes of death | 17 (6.9) |
| Unknown | 8 (3.2) |
Data are presented as No. (%).
AC = adenocarcinoma; p-TNM = pathological TNM; SCC = squamous cell carcinoma.
*Each case was reassigned for pathological stage according to the 7th edition of TNM classification[30, 31].