Table 1.
Demographic characteristics according to treatment with or without surgical resection
| Characteristics | No. | Surgery | Biopsy | P |
|---|---|---|---|---|
| Age | 58.5 ± 9.43 | 58.6 ± 11.55 | .968 | |
| ≤60 | 46 | 18 | 28 | .726 |
| >60 | 34 | 12 | 22 | |
| Gender | .073 | |||
| Male | 37 | 10 | 27 | |
| Female | 43 | 20 | 23 | |
| Symptom | .017 | |||
| Absent | 27 | 15 | 12 | |
| Present | 53 | 15 | 38 | |
| Symptom B | .057 | |||
| Absent | 63 | 27 | 36 | |
| Present | 17 | 3 | 14 | |
| No. of lesions | <.001 | |||
| 1 | 36 | 25 | 11 | |
| 2 | 11 | 4 | 7 | |
| 3 or more | 33 | 1 | 32 | |
| Stage | .003 | |||
| I | 56 | 27 | 29 | |
| II | 14 | 3 | 11 | |
| III | 3 | 0 | 3 | |
| IV | 7 | 0 | 7 | |
| Procedure of diagnosis | <.001 | |||
| Bronchoscopy biopsy | 33 | 3 | 30 | |
| Bercutaneous biopsy | 14 | 0 | 14 | |
| Wedge resection | 14 | 8 | 6 | |
| Segmentectomy or lobectomy | 19 | 19 | 0 | |
| Chemo‐ or radio‐therapy | <.001 | |||
| Absent | 41 | 23 | 18 | |
| Present | 39 | 7 | 32 |