Table 1 Demographic and clinical characteristics of patients in the training and validation datasets.
Training dataset (n = 843) | Validation dataset (n = 232) | ||
|---|---|---|---|
Age Mean (SD) | 58.4(±11.5) | 57.7(±11.7) | |
Gender | Male | 198(40.6%) | 54(38.8%) |
Female | 290(59.4%) | 85(61.2%) | |
Pathological type | Benign | 216(25.6%) | 78(33.6%) |
Pre-IA | 288(34.2%) | 78(33.6%) | |
IAC (Grade1) | 124(14.7%) | 29(12.5%) | |
IAC (Grade2) | 116(13.8%) | 26(11.2%) | |
IAC (Grade 3) | 99(11.7%) | 21(9.1%) | |
Location | LUL | 200(23.7%) | 49(21.1%) |
LLL | 140(16.6%) | 32(13.8%) | |
RUL | 268(31.8%) | 88(38.0%) | |
RML | 78(9.3%) | 15(6.5%) | |
RLL | 157(18.6%) | 48(20.7%) | |
Nodule morphology | pGGN | 287(34.0%) | 63(27.2%) |
Heterogeneous ground-glass nodule | 41(4.9%) | 20(8.6%) | |
Part-solid nodule | 182(21.6%) | 55(23.7%) | |
Pure solid nodule | 333(39.5%) | 94(40.5%) | |
Diameter (mm) | ≤10 mm | 429(50.9%) | 122(52.6%) |
10–20 mm | 280(33.2%) | 72(31.0%) | |
20–30 mm | 134(15.9%) | 38(16.4%) | |
Average diameter (mm) Mean (SD) | Benign Malignant | 8.6( ± 7.6) 14.3( ± 8.8) | 8.9( ± 7.3) 14.2( ± 8.1) |
