Table 1.

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