Table 1 Clinicopathological characteristics of 237 patients with clinical stage I NSCLC
Variables | n (%) or mean ± SD |
|---|---|
Age at operation, y | 69.0 ± 9.7 |
Gender | |
Female | 97 (40.9%) |
Male | 140 (59.1%) |
Smoking habit | |
Never smoker | 94 (39.7%) |
Ever smoker | 143 (60.3%) |
Serum CEA, ng/ml | |
≤ 5 | 178 (75.1%) |
> 5 | 59 (24.9%) |
Extent of pulmonary resection | |
Segmentectomy | 34 (14.3%) |
Lobectomy or more | 203 (85.7%) |
Tumor location | |
Central | 24 (10.1%) |
Non-central | 213 (89.9%) |
SUVmax of primary tumor | 2.3 ± 2.8 |
D-dimer, μg/ml | |
≤ 1.0 | 170 (71.7%) |
> 1.0 | 67 (28.3%) |
Tumor size, cm | 2.7 ± 1.5 |
Histological type | |
AD | 188 (79.3%) |
SQ | 36 (15.3%) |
Others | 13 (5.4%) |
Grade | |
1 | 156 (65.8%) |
2 / 3 / 4 | 81 (34.2%) |
Pleural invasion | |
Absent | 209 (88.2%) |
Present | 28 (11.8%) |
Pathological stage | |
Stage I | 205 (86.4%) |
Stage II | 19 (8.2%) |
Stage III | 13 (5.4%) |