Characteristics | Total | KRAS | EGFR | P value |
---|---|---|---|---|
No. of patients | 72 | 12 | 60 | Â |
Age (y)a | 56.75 ± 10.13 | 58.75 ± 7.53 | 56.35 ± 10.58 | 0.458 |
Sex | 0.054 | |||
 Female | 42 (58.3) | 4 (33.3) | 38 (63.3) |  |
 Male | 30 (41.7) | 8 (66.7) | 22 (36.7) |  |
Smoking | 0.002 | |||
 Never smoked | 55 (76.4) | 4 (33.3) | 47 (78.3) |  |
 Smoker | 17 (23.6) | 8 (66.7) | 13 (21.7) |  |
Location | 0.521 | |||
 Central | 2 (2.8) | 0 (0.0) | 2 (3.3) |  |
 Peripheral | 70 (97.2) | 12 (100.0) | 58 (96.7) |  |
T stage | 0.066 | |||
 T1–2 | 68 (94.4) | 10 (83.3) | 58 (96.7) |  |
 T3–4 | 4 (5.6) | 2 (16.7) | 2 (3.3) |  |
N stage | 0.702 | |||
 N0 | 47 (65.3) | 9 (7.5) | 38 (63.3) |  |
 N1–2 | 25 (34.7) | 3 (2.5) | 22 (36.7) |  |
Maximum diameterb | 2.89 ± 1.29 | 3.17 ± 1.38 | 2.83 ± 1.29 | 0.666 |
CT texture feature | 0.035 | |||
 SN | 56 (77.8) | 12 (100.0) | 44 (73.3) |  |
 SSN (PSN and NSN) | 16 (22.2) | 0 (0.0) | 16 (26.7) |  |