Table 4.

Agreement with reference standard. The table presents weighted kappa values.

Method of examination	Examiners
	1	2	3	4	5	6	7	8
DIFOTI	0.56	0.75	0.68	0.57	0.65	0.75	0.60	0.73
Film	0.61	0.46	0.49	0.36	0.44	0.65	0.59	0.58
Digital	0.45	0.37	0.56	0.47	0.71	0.63	0.56	0.53