Table 1.
Patient Demographics and Clinical Characteristics
| Variables | Value |
|---|---|
| Number | 284 |
| Age (years) | |
| Mean ± SD (range) | 60.78 ± 9.2 (31–83) |
| Gender (%) | |
| Male | 144 (51%) |
| Female | 140 (49%) |
| Pathology | |
| Squamous cell carcinoma | 36 (13%) |
| Adenocarcinoma | 248 (87%) |
| Tumor location (%) | |
| Right Upper Lobe | 82 (29%) |
| Right Middle Lobe | 16 (6%) |
| Right Lower Lobe | 39 (14%) |
| Left Upper Lobe | 77 (27%) |
| Left Lower Lobe | 51 (18%) |
| Mixed lobes | 19 (6%) |
| Differentiation (%) | |
| I | 86 (30%) |
| II | 176 (62%) |
| III | 22 (8%) |
| Tumor size (cm) | |
| Mean ± SD (range) | 2.44 ± 0.97 (0.4-4 cm) |
| Pleura invasion | |
| Absent | 220 (77%) |
| Present | 64 (23%) |
| Bronchus invasion | |
| Absent | 247 (87%) |
| Present | 37 (13%) |
| Multicentric invasion (%) | |
| Absent | 264 (93%) |
| Present | 20 (7%) |
| Angiolymphatic invasion (%) | |
| Absent | 274 (96%) |
| Present | 10 (4%) |
| Neural invasion | |
| Absent | 283 (100%) |
| Present | 1 (0%) |
SD standard deviation