| | LC (n = 70) | LM (n = 129) | P value |
|---|
Size (mm) | 19.1 ± 5.5 | 14.9 ± 6.2 | < 0.001 |
Cranio-caudal location | | | 0.188 |
Upper | 35 (50.0) | 52 (40.3) | |
Non-upper | 35 (50.0) | 77 (59.7) | |
Axial location | | | 0.105 |
Central | 12 (17.1) | 12 (9.3) | |
Peripheral | 58 (82.9) | 117 (90.7) | |
Margina | | | < 0.001 |
Smooth | 7 (10) | 54 (41.9) | |
Lobulated | 30 (42.9) | 68 (52.7) | |
Spiculated | 33 (47.1) | 7 (5.4) |
Density | | | < 0.001 |
Solid | 47 (67.1) | 128 (99.2) | |
Sub-solid | 23 (32.9) | 1 (0.8) | |
Air bronchogram | 30 (42.9) | 7 (5.4) | < 0.001 |
Cavitation | 13 (18.6) | 19 (14.7) | 0.296 |
Pleural tags | 41 (58.6) | 25 (19.4) | < 0.001 |
Pleural abutment | 32 (45.7) | 53 (41.1) | 0.528 |
Background emphysema | 18 (25.7) | 13 (10.2) | 0.004 |
- Values in parentheses are percentages. Values are presented as mean ± standard deviation where applicable. Size is a quantitative feature. Cranio-caudal location, axial location, margin, density, air bronchogram, cavitation, pleural tags, pleural abutment, and background emphysema are qualitative features
- aPost hoc analysis was performed to compare the proportion of margin of SPNs between the two groups, smooth vs. lobulated, P = 0.005; smooth vs. spiculated, P < 0.001; lobulated vs. spiculated, P < 0.001. Significance level of 0.0167 takes into account the Bonferroni’s correction for post hoc analysis (0.05/3). Note: significant P values are shown in bold
- CT computed tomography, LC lung cancer, LM lung metastases, SPNs solitary pulmonary nodules
