Evaluation of artificial intelligence models for osteoarthritis of the knee using deep learning algorithms for orthopedic radiographs

Table 1 Data splits in training, testing and validation subsets according to Kellgren-Lawrence grades

Osteoarthritis Kellgren-Lawrence grade	Training		Testing		Validation
	Samples, n	Proportion, %	Samples, n	Proportion, %	Samples, n	Proportion, %
0	255	17.6	37	17.6	73	17.7
1	213	14.7	31	14.7	61	14.8
2	164	11.4	24	11.4	47	11.4
3	237	16.4	35	16.7	68	16.4
4	576	39.9	83	39.5	164	39.7
Total	1445	100	210	100	413	100