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| No. (%) or median (range) | |
|---|---|
| Total assessable patients | 311 (100) |
| Follow-up month | 63, 0–144 |
| Age, years | 68, 30–91 |
| Sex | |
| Female | 154 (49.5) |
| Male | 157 (50.5) |
| Smoking status | |
| Never | 178 (57.2) |
| Former | 133 (42.8) |
| Histological type | |
| Adenocarcinoma | 265 (85.2) |
| Squamous cell carcinoma | 33 (10.6) |
| Others | 13 ( 4.2) |
| Surgical procedure | |
| Lobectomy | 186 (59.8) |
| Limited resections (segmentectomy or wedge resection) | 125 (40.2) |
| Recurrence | |
| No | 269 (86.5) |
| Yes | 42 (13.5) |
