Table 3.

Inter-observer concordance: Cohen ĸ and standard deviation (SD) values

		Cohen's ĸ	SD
RAD	G1	0.59	0.124
SEN	G2	0.725	0.122
RAD	G1	0.583	0.125
JUN	G2	0.769	0.132
RAD	G1	0.435	0.121
YOU	G2	1	0.131
Mean	G1	0.536	0.123
	G2	0.831	0.129

RAD radiologist with 22-year experience, SEN senior resident with five-year experience, JUN junior resident with two-year experience, YOU young resident