Table 1.
Demographic data of 33 lung cancer patients
| Variable | No. of patients | Percentage | |
|---|---|---|---|
| Gender | Male | 18 | 54.5% |
| Female | 15 | 45.5% | |
| Age | Mean, median, range (years) | 61, 63, 40–75 | |
| Smoking history | Smoker | 15 | 45.5% |
| Non‐smoker | 18 | 54.5% | |
| TMs | Positive | 10 | 30.3% |
| Negative | 23 | 69.7% | |
| LND classification | Solid nodule | 30 | 90.9% |
| Part solid nodule | 3 | 9.1% | |
| Preoperative biopsy | Yes | 18 | 54.5% |
| No | 15 | 45.5% | |
| Sequence of vessel interruption | PV‐PA | 19 | 57.6% |
| PA‐PV | 14 | 42.4% | |
| Histology | Adenocarcinoma | 25 | 75.8% |
| Sq + others | 8 | 24.2% | |
| pT stage | Mean, median, range (cm) | 2.7, 2.5, 1.2–4.5 | |
| p stage | I | 21 | 63.6% |
| II | 6 | 18.2% | |
| III | 6 | 18.2% | |
| pN stage | N0 | 23 | 69.7% |
| N1–2 | 10 | 30.3% | |
| Vessel/lymphatic invasion | Positive | 10 | 30.3% |
| Negative | 23 | 69.7% | |
| Pleural invasion | Positive | 5 | 15.2% |
| Negative | 28 | 84.8% |
LND, lung nodule density; PA, pulmonary artery; pN stage, pathological N stage; pT stage, pathological T stage; PV, pulmonary vein; Sq, squamous cell carcinoma; TMs, tumor markers.