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. Author manuscript; available in PMC: 2010 Jul 21.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2009 Jan 24;50(7):3366–3373. doi: 10.1167/iovs.08-2691

Table 2.

Intergrader Comparison

OCT Parameter Grader 1 Mean Grader 2 Mean Mean absolute difference (median, maximum) ICC Weighted Kappa
ICS
 Volume (9) 0.04 0.03 0.01 (0, 0.04) 0.96 1.00
 Volume (1–9) 0.14 0.10 0.03 (0, 0.17) 0.97 0.83
 FCP 72.76 59.56 13.76 (0, 79) 0.98 0.96
ONL
 Volume (9) 0.14 0.16 0.02 (0.02, 0.04) 0.94 0.80
 Volume (1–9) 2.98 3.17 0.22 (0.19, 0.90) 0.81 0.58
 FCP 211.40 228.08 25.16 (26, 76) 0.95 0.77

ICC = Intraclass correlation coefficient

FCP = Foveal center point

ONL = Outer nuclear layer

ICS = Intraretinal cystoid space