Summary of the training and testing datasets made from the whole Liverpool (UK)+New Zealand (NZ) dataset and the IRAN dataset, only used as validation set
| Class name | Training | Testing | Validation |
| Healthy (n=134) | 82 | 20 | 32 |
| Stage 1 (n=282) | 159 | 40 | 83 |
| Stage 2 (n=425) | 211 | 53 | 161 |
| Stage 3 (n=208) | 115 | 29 | 64 |
| Stage 4 (n=877) | 548 | 137 | 192 |
| Total (n=1926) | 1115 | 279 | 532 |