Table 1. Patient characteristics.
| Clinical characteristics | Training set | Validation set | |||
|---|---|---|---|---|---|
| Malignant | Benign | Malignant | Benign | ||
| NSCLC vs. benign | N=91 | N=81 | N=90 | N=81 | |
| Gender | |||||
| Male | 65 (71.4%) | 42 (51.9%) | 55 (61.1%) | 42 (51.9%) | |
| Female | 26 (28.6%) | 39 (48.1%) | 35 (38.9%) | 39 (38.9%) | |
| Age (years), median (range) | 59.9 (32, 84) | 47.6 (19, 80) | 62.2 (38, 78) | 47.3 (21, 79) | |
| ADC vs. benign | N=80 | N=95 | N=80 | N=95 | |
| Gender | |||||
| Male | 38 (47.5%) | 46 (48.4%) | 50 (62.5%) | 52 (54.7%) | |
| Female | 42 (52.5%) | 49 (51.6%) | 30 (37.5%) | 43 (45.3%) | |
| Age (years), median (range) | 58.0 (32, 81) | 46.4 (19, 74) | 60.7 (27, 79) | 51.1 (23, 80) | |
| SCC vs. benign | N=18 | N=68 | N=17 | N=68 | |
| Gender | |||||
| Male | 17 (94.4%) | 33 (48.5%) | 13 (76.5%) | 38 (55.9%) | |
| Female | 1 (5.6%) | 35 (51.5%) | 4 (23.5%) | 30 (44.1%) | |
| Age (years), median (range) | 63.2 (48, 76) | 47.9 (21, 79) | 62.8 (44, 77) | 45.6 (19, 80) | |
| SCLC vs. benign | N=23 | N=81 | N=23 | N=81 | |
| Gender | |||||
| Male | 15 (65.2%) | 43 (53.1%) | 19 (82.6%) | 41 (50.6%) | |
| Female | 8 (34.8%) | 38 (46.9%) | 4 (17.4%) | 40 (49.4%) | |
| Age (years), median (range) | 62.7 (46, 81) | 47.9 (19, 80) | 57.2 (33, 88) | 47.0 (20, 79) | |
NSCLC, non-small cell lung cancer; ADC, adenocarcinoma; SCC, squamous cell carcinoma; SCLC, small cell lung cancer.