Table 1.
Demographics corresponding to training and validation sets.
| Characteristic | Training and development set (N = 822 single CXRs) | Validation set (N = 121 paired CXRs) | |
|---|---|---|---|
| Age (per patient) | 61.24 ± 10.74 | 60.74 ± 9.12 | |
| Male | 632 (76.96%) | 90 (74.38%) | |
| Multiple lesions | One lesion | 740 | 108 |
| Multiple lesions (≥2) | 82 | 13 | |
| Total | 822 | 121 | |
| Size (mm) | ≤10 mm | 14 (1.49%) | 2 (1.39%) |
| 10–20 mm | 117 (12.45%) | 21 (14.58%) | |
| 20–30 mm | 231 (24.57%) | 23 (15.97%) | |
| ≥30 mm | 578 (61.49%) | 98 (68.06%) | |
| Total | 940 | 144 | |
| Location | Right upper | 278 (29.57%) | 45 (31.25%) |
| Right middle | 80 (8.51%) | 12 (8.33%) | |
| Right lower | 144 (15.32%) | 24 (16.67%) | |
| Left upper | 244 (25.96%) | 37 (25.69%) | |
| Left lower | 194 (20.64%) | 26 (18.06%) | |
| Total | 940 | 144 | |