Table 1 clinical characteristics of training and test set at baseline
Characteristic | test, N = 1051 | train, N = 2461 | p-value2 |
|---|---|---|---|
age | 63 (56, 67) | 62 (55, 67) | 0.14 |
gender | > 0.9 | ||
F | 53 (50%) | 123 (50%) | |
M | 52 (50%) | 123 (50%) | |
max diameter(mm) | 37 (24, 50) | 36 (25, 48) | 0.5 |
smoking history | 40 (38%) | 89 (36%) | 0.7 |
lung cancer family history | 12 (11%) | 24 (9.8%) | 0.6 |
ProGRP | 44 (37, 56) | 43 (38, 56) | > 0.9 |
CEA | 3 (2, 6) | 3 (2, 6) | 0.7 |
cyfra | 2.20 (1.70, 3.40) | 2.20 (1.70, 3.38) | 0.9 |
NSE | 13.7 (12.4, 15.3) | 13.3 (12.2, 15.1) | 0.3 |
SCCA | 0.80 (0.60, 0.90) | 0.80 (0.60, 0.98) | > 0.9 |
type | 0.6 | ||
CTR < 0.5 | 11 (10%) | 20 (8.1%) | |
CTR > 0.5 | 5 (4.8%) | 6 (2.4%) | |
pure-GGO | 5 (4.8%) | 14 (5.7%) | |
solid | 84 (80%) | 206 (84%) | |
lobular | 42 (40%) | 92 (37%) | 0.6 |
spiculation | 52 (50%) | 149 (61%) | 0.055 |
pleural traction | 27 (26%) | 63 (26%) | > 0.9 |
air bronchus | 21 (20%) | 54 (22%) | 0.7 |
vessel | 43 (41%) | 104 (42%) | 0.8 |
hollow | 17 (16%) | 33 (13%) | 0.5 |
smooth edge | 6 (5.7%) | 13 (5.3%) | 0.9 |
adjacent to pleural | 15 (14%) | 30 (12%) | 0.6 |