Table 2.

Intra-grader Agreement^a of Test-Retest Sample (N=53)

Second review
First Review	Grader 1	Yes	No	Indeterminate	Total	κ valueb = 0.57 95% CI (0.35, 0.78)
	Yes	17	2	0	19
	No	9	23	0	32
	Indeterminate	0	1	1	2
	Total	26	26	1	53
	Grader 2	Yes	No	Indeterminate	Total	κ value = 0.76 95% CI (0.56, 0.92)
	Yes	21	1	0	22
	No	6	25	0	31
	Indeterminate	0	0	0	0
	Total	27	26	0	53
	Grader 3	Yes	No	Indeterminate	Total	κ value = 0.74 95% CI (0.56, 0.91)
	Yes	20	1	0	21
	No	5	25	0	30
	Indeterminate	1	1	0	2
	Total	26	27	0	53
	Consensus	Yes	No	Total		κ value = 0.70 95% CI (0.51, 0.90)
	Yes	21	2	23
	No	6	24	30
	Total	27	26	53

^aAgreement testing between first and second review of test-retest MRI sample,

^bCalculated kappa values are weighted for graders and simple for consensus agreement testing