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. 2023 Mar 20;37(13):2753–2760. doi: 10.1038/s41433-023-02409-y

Table 3.

Diabetic retinopathy outcomes at Month 12 (M12) and Month 24 (M24) for the treatment-naïve and non-treatment-naïve cohort.

Treatment-naïve Non-treatment-naïve
M12 (N = 388) M24 (N = 326) M12 (N = 169) M24 (N = 135)
BL n (%) M12 n (%) BL n (%) M24 n (%) BL n (%) M12 n (%) BL n (%) M24 n (%)
English R0 3 (1.2) - 3 (1.2) 4 (1.7) 1 (0.9) 2 (1.9) 1 (0.9) 3 (2.8)
R1 94 (38.7) 98 (40.3) 94 (39.0) 95 (39.4) 37 (34.9) 33 (31.1) 37 (34.9) 37 (34.9)
R2 78 (32.1) 61 (25.1) 78 (32.4) 50 (20.7) 35 (33.0) 30 (28.3) 35 (33.0) 27 (25.5)
R3 41 (16.9) 38 (15.6) 41 (17.0) 46 (19.1) 18 (17.0) 20 (18.9) 18 (17.0) 17 (16.0)
Missing 27 (11.1) 46 (18.9) 25 (10.4) 46 (19.1) 15 (14.2) 21 (19.8) 15 (14.2) 22 (20.8)
Scottish R0 - 1 (2.2) - - - - - -
R1 21 (45.7) 26 (56.5) 21 (43.8) 28 (58.3) 4 (30.8) 8 (61.5) 4 (28.6) 6 (42.9)
R2 19 (41.3) 10 (21.7) 19 (39.6) 10 (20.8) 5 (38.5) 2 (15.4) 5 (35.7) 3 (21.4)
R3 3 (6.5) 5 (10.9) 3 (6.3) 7 (14.6) 4 (30.8) 2 (15.4) 4 (28.6) 4 (28.6)
R4 - 1 (2.2) - - - 1 (7.7) - -
Missing 3 (6.5) 3 (6.5) 5 (10.4) 3 (6.3) - - 1 (7.1) 1 (7.1)

Outcomes are provided based on the English National Screening Committee (English) or Scottish Diabetic Retinopathy Grading Scheme (Scottish) classifications as appropriate.

English scale, R0 No visible retinopathy, R1 Background retinopathy, R2 Pre-proliferative retinopathy, R3 Proliferative retinopathy.

Scottish; R0 No visible retinopathy, R1 Mild retinopathy, R2 Observable retinopathy, R3 Referable retinopathy, R4 Proliferative retinopathy.