Table 2.

ETDRS DR severity level in ETDRS 7-field images from Optos vs. Clarus

ETDRS DR severity level from Optos	ETDRS DR severity level from Clarus									Total
	10	15/20	35	43	47	53	61	65	71/75
10	0	0	0	0	0	0	0	0	0	0
15/20	0	0	0	0	0	0	0	0	0	0
35	0	0	1	0	0	0	0	0	0	1
43	0	0	0	1	0	0	0	0	0	1
47	0	0	0	0	1	2	0	0	0	3
53	0	0	0	0	0	1	0	0	0	1
61	0	0	0	0	0	0	37	0	0	37
65	0	0	0	0	0	0	0	2	0	2
71/75	0	0	0	0	0	0	0	0	1	1
Total	0	0	1	1	1	3	37	2	1	46

Boldface numbers indicate perfect agreement

ETDRS Early treatment of diabetic retinopathy study, DR diabetic retinopathy