Table 1 General characteristics of 139 patients
Variables | All patients (n = 139) | Pathologic N0 (n = 115) | Pathologic N1 and N2 (n = 24) | p a |
|---|---|---|---|---|
Age (years) | 62.82 ± 10.04 (35 ~ 84) | 62.90 ± 10.0 | 62.46 ± 10.44 | 0.847 |
Gender (Male/Female) | 80 (57.6 %)/59 (42.4 %) | 63 (54.8 %)/52 (45.2 %) | 17 (70.8 %)/7 (29.2 %) | 0.177 |
Dissected lymph nodes | 19.74 ± 12.86 | 19.12 ± 12.98 | 22.67 ± 12.07 | 0.222 |
Tumor size (cm) | 2.11 ± 0.63 | 2.05 ± 0.64 | 2.38 ± 0.57 | 0.023 |
Location | 0.775 | |||
RUL/RML/RLL | 54 (38.9 %)/19 (13.7 %)/28 (20.1 %) | 46 (40.0 %)/17 (14.8 %)/22 (19.1 %) | 8 (33.3 %)/2 (8.3 %)/6 (25.0 %) | |
LUL/LLL | 26 (18.7 %)/12 (8.6 %) | 20 (17.4 %)/10 (8.7 %) | 6 (25.0 %)/2 (8.3 %) | |
Type of operation | 0.161 | |||
Wedge resection/Segmentectomy | 10 (7.2 %)/2 (1.4 %) | 10 (8.7 %)/1 (0.9 %) | 0/1 (4.2 %) | |
Lobectomy or above | 129 (91.4 %) | 104 (90.4 %) | 23 (95.8 %) | |
Pathology | 0.290 | |||
Adenocarcinoma | 106 (76.3 %) | 90 (78.3 %) | 16 (66.7 %) | |
Non-adenocarcinoma | 33 (23.7 %) | 25 (21.7 %) | 8 (33.3 %) | |
Differentiation | 0.317 | |||
Well differentiated | 32 (23.1 %) | 29 (25.2 %) | 3 (12.5 %) | |
Moderate differentiated | 56 (43.3 %) | 45 (39.2 %) | 11 (45.8 %) | |
Poorly differentiated | 17 (12.2 %) | 12 (10.4 %) | 5 (20.8 %) | |
Not defined | 34 (24.4 %) | 29 (25.2 %) | 5 (20.8 %) | |
pT stage | 0.627 | |||
T1a/T1b | 43 (31.0 %)/33 (23.7 %) | 37 (32.2 %)/28 (24.3 %) | 6 (25.0 %)/5 (20.8 %) | |
T2a | 63 (45.3 %) | 50 (43.5 %) | 13 (54.2 %) |