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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Ophthalmology. 2010 Nov 20;118(4):768–771. doi: 10.1016/j.ophtha.2010.08.027

Table 1.

Distribution of grades assigned by each grader

Grade Session 1: Without using standard photos: n (%) Session 2: Using standard photos: n (%)
Grader 1 Grader 2 Grader 3 Grader 1 Grader 2 Grader 3
0 16 (20.2) 22 (27.8) 25 (31.6) 13 (16.5) 13 (16.5) 16 (20.2)
0.5 17 (21.5) 26 (32.9) 0 (0) 22 (27.8) 25 (31.6) 16 (20.2)
1 23 (29.1) 17 (21.5) 20 (25.3) 22 (27.8) 24 (30.4) 22 (27.8)
2 15 (19.0) 9 (11.4) 18 (22.8) 15 (19.0) 10 (12.7) 19 (24.0)
3 6 (7.6) 3 (3.8) 12 (15.2) 5 (6.3) 3 (3.8) 3 (3.8)
4 2 (2.5) 2 (2.5) 4 (5.1) 2 (2.5) 4 (5.1) 3 (3.8)
Mean
(sd)
1.11 (0.99) 0.82 (0.91) 1.37 (1.22) 1.10 (0.95) 1.03 (1.00) 1.13 (0.99)

Distribution of grades in sessions 1 and 2 is shown with and without the use of standard reference photos (sd=standard deviation).