Table 2. Surgery and postoperatively pathological stage.
| Characteristics | N | Percent (%) |
|---|---|---|
| Standard resection | 63 | 75.0 |
| Lobectomy | 63 | 75.0 |
| Extensive resection | 21 | 25.0 |
| Sleeve lobectomy | 3 | 3.6 |
| Bilobectomy | 14 | 16.7 |
| Pneumonectomy | 4 | 4.7 |
| Margin status | ||
| R0 | 75 | 89.3 |
| R1 | 9 | 10.7 |
| P-T | ||
| T0* | 4 | 4.8 |
| T1 | 38 | 45.2 |
| T2 | 40 | 47.6 |
| T3 | 2 | 2.4 |
| P-N | ||
| Nodal downstaging | 38 | 45.2 |
| N2→0 | 21 | 25.0 |
| N2→1 | 17 | 20.2 |
| Persistent N2→2 | 46 | 54.8 |
| Single N2 | 14 | 16.7 |
| Multiple N2 | 32 | 30.1 |
| Total | 84 | 100.0 |
T0*, pathological complete response (no residual tumor in the initial site).