Table 2.

For each participant: years of experience in pathology practice, diagnostic classification of slides, level of agreement with each other (% concordance and Kappa index), and number of fields of view examined

ID*	EXP†	Virtual Pathology Slide										Concordance,%‡	Kappa§	Fields of View
		S6	S2	S3	S4	S7	S9	S10	S1	S5	S8
5	5	B5	B5	B5	B2	B2	B2	B2	B4	B5	B4	90	0.97	321
62	5	B5	B5	B5	B2	B2	B3	B2	B5	B4	B4	80	0.94	326
35	5	B5	B5	B5	B2	B2	B1	B1	B4	B5	B4	70	0.94	122
10	5	B5	B5	B5	B2	B3	B3	B2	B5	B4	B4	70	0.91	157
39	5	B5	B5	B5	B1	B3	B3	B2	B5	B5	B5	60	0.90	343
55	5	B5	B5	B5	B2	B2	B2	B2	B5	B3	B3	80	0.87	289
87	5	B5	B5	B5	B1	B2	B2	B2	B3	B5	B3	70	0.86	130
18	3	B5	B5	B4	B1	B3	B2	B1	B5	B4	B3	40	0.86	252
68	5	B5	B5	B5	B2	B3	B2	B2	B5	B4	B2	70	0.85	228
65	5	B5	B5	B5	B2	B2	B3	B1	B3	B4	B4	60	0.80	234
22	5	B5	B5	B5	B2	B2	B2	B5	B5	B5	B5	80	0.75	204
41	5	B5	B5	B5	B1	B2	B2	B2	B2	B4	B4	70	0.75	216
7	5	B5	B5	B5	B2	B2	B2	B1	B4	B2	B3	60	0.73	121
1	5	B5	B5	B4	B2	B4	B2	B2	B5	B5	B1	70	0.67	223
75	5	B5	B5	B5	B2	B2	B2	B5	B4	B5	B2	70	0.65	120
36	3	B5	B5	B2	B2	B3	B3	B4	B5	B2	B2	40	0.26	201
6	5	B5	B2	B5	B2	B2	B4	B5	B3	B5	B2	50	0.23	418
Average												66.5	0.76	23

^* ID = identification number of participant.

^† EXP = years of experience in pathology practice.

^‡ Concordance = number of slides (expressed as a percentage) for which the user's diagnosis is in agreement with the consensus Virtual Pathology Slide diagnosis.

^§ Kappa = Cohen's Kappa, a measure of agreement between observers, taking into account agreement that could occur by chance. Kappa greater than 0.7 indicates "substantial agreement."