Characteristics | No. of patients (%) |
---|---|
Gender | Â |
 Male | 197 (96.6) |
 Female | 7 (3.4) |
Age, years | Â |
 Mean | 60.75 |
 SD | 9.64 |
Differentiation | Â |
 Well/moderate | 187 (91.7) |
 Poor/undifferentiation | 17 (8.30) |
Tumor invasion | Â |
 T1 | 61 (29.9) |
 T2 | 70 (34.3) |
 T3 | 57 (27.9) |
 T4 | 16 (7.8) |
TNM stage | Â |
 I | 56 (27.5) |
 II | 35 (17.2) |
 III | 74 (36.3) |
 IV | 39 (19.1) |
Lymph node metastasis (LNM) | Â |
 Yes | 66 (32.4) |
 No | 138 (67.6) |
Smoking history | Â |
 Yes | 141 (69.1) |
 No | 63 (30.9) |
Pack-years | Â |
 ≤30 | 149 (73.0) |
 >30 | 55 (27.0) |
Survival status | Â |
 Dead | 113 (55.4) |
 Alive | 91 (44.60) |