Table 1.
Baseline demographic and clinicohistologic characteristics of the patients described in this study
| Clinicohistologic feature | n (%) | |
|---|---|---|
| Age, median [range] | 60 [20–79] | |
| Sex | Female | 16 (22.5) |
| Male | 54 (76.1) | |
| Unknown | 1 (1.4) | |
| Stage | III | 22 (31) |
| IV | 48 (67.6) | |
| Unknown | 1 (1.4) | |
| Histology | LUAD | 56 (78.9) |
| LUSC | 15 (21.1) | |
| Smoking | Yes | 33 (46.5) |
| No | 38 (53.5) | |
| Location of lung tumor | Central | 39 (54.9) |
| Peripheral | 28 (39.4) | |
| Unknown | 4 (5.6) | |
| Sputum type | Induced | 13 (18.3) |
| Non-induced | 58 (81.7) | |
| T stage | T1 | 9 (12.7) |
| T2 | 19 (26.8) | |
| T3 | 15 (21.1) | |
| T4 | 28 (39.4) | |
| N stage | N0 | 1 (1.4) |
| N1 | 7 (9.9) | |
| N2 | 22 (31) | |
| N3 | 40 (56.3) | |
| Unknown | 1 (1.4) | |
| M stage | M0 | 19 (26.8) |
| M1 | 48 (67.6) | |
| Unknown | 4 (5.6) | |
| Nodal metastasis | Yes | 68 (95.8) |
| No | 2 (2.8) | |
| Unknown | 1 (1.4) | |
| Brain metastasis | Yes | 12 (16.9) |
| No | 58 (81.7) | |
| Unknown | 1 (1.4) | |
| Pleural metastasis | Yes | 27 (38.0) |
| No | 43 (60.6) | |
| Unknown | 1 (1.4) | |
| Bone metastasis | Yes | 12 (16.9) |
| No | 58 (81.7) | |
| Unknown | 1 (1.4) | |
| Tracheal violation | Yes | 23 (32.4) |
| No | 44 (62.0) | |
| Unknown | 4 (5.6) | |
| Blood vessel invasion | Yes | 12 (16.9) |
| No | 56 (78.9) | |
| Unknown | 3 (4.2) | |
| Pleurisy | Yes | 19 (26.8) |
| No | 48 (67.6) | |
| Unknown | 4 (5.6) | |
LUAD lung adenocarcinoma, LUSC lung squamous cell carcinoma