Table 2.

Intra- and Intergrader Agreement in Manual Cone Identifications

	True positive rate	False positive rate	Dice's coefficient
Observer	Mean (SD)	Mean (SD)	Mean (SD)
Grader 1A as “ground truth”
Grader 1B	0.94 (0.05)	0.18 (0.09)	0.87 (0.06)
Grader 2	0.88 (0.13)	0.16 (0.09)	0.85 (0.09)
Grader 3	0.88 (0.11)	0.23 (0.11)	0.81 (0.08)
Grader 2 as “ground truth”
Grader 1A	0.84 (0.09)	0.12 (0.13)	0.85 (0.09)
Grader 3	0.86 (0.12)	0.22 (0.15)	0.80 (0.12)
Grader 3 as “ground truth”
Grader 1A	0.77 (0.11)	0.12 (0.11)	0.81 (0.08)
Grader 2	0.78 (0.15)	0.14 (0.12)	0.80 (0.12)