Table 1.

Training and Test Dataset Characteristics

	Kaggle Training and Internal Test Dataset	SEED External Test Dataset	Messidor-1 External Test Dataset
No. of study eye	41 614	5455	1200
No. of unique individuals	25 536	2855	NA
Referable diabetic retinopathy	6436	545	501
Nonreferable diabetic retinopathy	35 178	4910	699

NA = not available; SEED = Singapore Epidemiology of Eye Diseases.