Table 3.

Intra-observer agreement in each observation method (Kappa coefficient)

	Observer 1	Observer 2	Observer 3	Observer 4	Observer 5
Scanner A vs Microscope	0.835	0.677	0.784	0.748	0.830
Scanner B vs Microscope	0.775	0.729	0.861	0.763	0.797
Scanner C vs Microscope	0.824	0.717	0.814	0.738	0.726
Scanner D vs Microscope	0.815	0.664	0.804	0.776	0.799
Scanner A vs B	0.816	0.745	0.777	0.858	0.808
Scanner A vs C	0.851	0.704	0.744	0.859	0.892
Scanner A vs D	0.856	0.594	0.728	0.880	0.742
Scanner B vs C	0.792	0.784	0.939	0.891	0.848
Scanner B vs D	0.810	0.709	0.852	0.871	0.761
Scanner C vs D	0.831	0.772	0.832	0.872	0.754