Table 2.

Inter-expert heterogeneity during phase 1.

	Expert 1	Expert 2	Expert 3
Expert 1	–	23/90 κ =0.38 [0.22, 0.53]	17/90 κ = 0.62 [0.48, 0.75]
Expert 2	16/83	–	19/83 κ = 0.44 [0.29, 0.59]
Expert 3	8/83	18/83	–

The first figures give the number of lesions detected by the expert in row not detected by the expert in column. For example, over its 90 new lesions detected, expert 1 detected 23 lesions that were not detected by expert 2 and 17 that were not detected by expert 3. The second figures (only once per expert combination) give the Cohen's Kappa coefficient and its associated 95% CI.