Table 1 Baseline characteristics
Characteristics | n = 45 (%) |
|---|---|
Age, median (range) | 70 (40–79) |
Sex, male | 39 (87) |
Tumor location | |
 RUL | 16 (36) |
 RML | 1 (2) |
 RLL | 12 (27) |
 LUL | 11 (24) |
 LLL | 3 (7) |
 RMLL | 2 (4) |
Tumor size, mm, median (range) | 35 (9–106) |
Clinical T factor | |
 T1 | 16 (35) |
 T2 | 17 (38) |
 T3 | 8 (18) |
 T4 | 4 (9) |
Histology | |
 Adenocarcinoma | 18 (40) |
 Squamous cell carcinoma | 18 (40) |
 Others a | 9 (20) |
Procedure of operation | |
 Lobectomy | 34 (76) |
 Bi-lobectomy | 7 (16) |
 Pneumonectomy | 2 (4) |
 No resection (only LN sampling) | 2 (4) |
Lymph node dissection | |
 Only LN sampling | 2 (4) |
 ND2a-1 | 7 (16) |
 ND2a-2 | 34 (76) |
 ND2b | 2 (4) |