Overall |
Age (years) | ≤65 | 1149 (50) | 69.2 | 0.388 |
>65 | 1146 (50) | 67.9 |
|
Gender | Women | 889 (38) | 70.5 | 0.049* |
Men | 1406 (62) | 67.4 |
|
Smoking habits | Non-smoker | 790 (34) | 71.2 | 0.008* |
Ever smoker | 1505 (66) | 67.2 |
|
FEV1/FVC (%) | ≥70 | 1726 (75) | 69.3 | 0.038* |
<70 | 559 (24) | 65.9 |
Not examined | 10 | |
|
CEA | Within normal range | 1441 (63) | 72 | <0.001* |
Elevated | 851 (37) | 62.6 |
Not examined | 3 | |
|
Tumour size (cm) | ≤3.0 | 1239 (54) | 79.5 | <0.001* |
>3.0 | 1056 (46) | 55.3 |
|
Histological type | Adenocarcinoma | 1546 (67) | 69.8 | 0.009* |
Non-adenocarcinoma | 749 (33) | 66.1 |
|
Histological differentiation | Well differentiated | 628 (27) | 86.7 | <0.001* |
Moderately/poorly differentiated | 1667 (73) | 61 |
|
Lymphatic permeation | Absent | 1595 (69) | 77.7 | <0.001* |
Present | 700 (31) | 49.1 |
|
Intratumoral vascular invasion | Absent | 1151 (50) | 85 | <0.001* |
Present | 1144 (50) | 51.5 |
|
Visceral pleural invasion | Absent | 1537 (67) | 77.9 | <0.001* |
Present | 758 (33) | 48.6 |
|
N status | N0 | 1640 (71) | 80.7 | <0.001* |
N1 or N2 | 655 (29) | 36.8 |