Characteristic | No. of patients (%) |
---|---|
Median age (y)a | 58.6 ± 9.8 (31 ~ 84) |
Sex | |
Male | 157 (41.9) |
Female | 218 (58.1) |
Smoking status | |
Current or former smoker | 119 (31.7) |
Non-smoker | 256 (68.3) |
Invasive lobe | |
RUL | 152 (40.5) |
RML | 19 (5.1) |
RLL | 69 (18.4) |
LUL | 84 (22.4) |
LLL | 51 (13.6) |
Surgical procedure | |
Wedge resection | 33 (8.8) |
Segmentectomy | 1 (0.3) |
Lobectomy | 341 (90.9) |
Imaging techniqueb | |
Enhanced CT | 193 (51.5) |
Non-enhanced CT | 182 (48.5) |
PET/CT | 147 (39.2) |
Subtype predominance | |
AIS | 41 (10.9) |
MIA | 51 (13.6) |
Lepidic | 49 (13.1) |
Acinar | 176 (46.9) |
Papillary | 32 (8.5) |
Micropapillary | 5 (1.3) |
Solid | 11 (2.9) |
Variants | 10 (2.7) |
Pathologic Stage c | |
IA | 173 (47.5) |
IB | 148 (40.7) |
IIA | 22 (6.0) |
IIIA | 21 (5.8) |