Table 1 Data summarization
From: Pneumoconiosis computer aided diagnosis system based on X-rays and deep learning
|  | Pneumoconiosis (n = 1248) | Normal (n = 512) |
|---|---|---|
N, Male (%) | 1237 (99.1) | 264 (51.6) |
Age, mean years (SD) | 59.0 (9.3) | 37.5 (11.6) |
Time of dust exposure (y) | 2–29 | 2–6 |
Category | Â | Â |
 0 | – | 512 |
 1 | 352 | – |
 2 | 478 | – |
 3 | 418 | – |
Subgroups | Â | Â |
 Per training | 1123 | 461 |
 Validation | 114 | 51 |