Table 1 Patient characteristics
n | 2,863 |
|---|---|
Age, mean ± SD | 66.71 ± 9.149 |
Sex (male), n (%) | 1,478 (51.6%) |
Smoking history, n (%) | 1,471 / 2,779 (52.9%) |
Procedure, n (%) | |
Lobectomy | 2,863 (100%) |
Operation time (min.), mean ± SD | 205.3 ± 66.89 |
Histological subtype, n (%) | |
AIS | 135 (4.7%) |
MIA | 175 (6.1%) |
Invasive adenocarcinoma | 2,506 (87.5%) |
Lepidic | 521 (18.2%) |
Acinar | 537 (18.8%) |
Papillary | 1,161 (40.6%) |
Micropapillary | 63 (2.2%) |
Solid | 224 (7.8%) |
Variants | 47 (1.6%) |
Invasion | |
Lymph vessel invasion ( ±), n (%) | 777 / 1,785 (30.3%) |
Vascular invasion ( ±), n (%) | 695 / 1,875 (27.0%) |
Pleural invasion ( ±), n (%) | 691 / 2,156 (24.3%) |
EGFR status ( ±), n (%) | 641 / 783 (45.0%) |
Adjuvant chemotherapy ( ±), n (%) | 1,017 / 1,820 (35.8%) |
Clinical stage, n (%) | |
Stage IA | 1732 (60.5%) |
Stage IB | 749 (26.2%) |
Stage IIA | 190 (6.6%) |
Stage IIB | 83 (2.9%) |
Stage IIIA | 98 (3.4%) |
Pathological stage, n (%) | |
Stage IA | 1,426 (49.8%) |
Stage IB | 732 (25.6%) |
Stage IIA | 260 (9.1%) |
Stage IIB | 110 (3.8%) |
Stage IIIA | 314 (11.0%) |