Table 1.

The concordance in the scores given by both observers with the values of corresponding Kappa values

Scores by observer 1	Scores by observer 2			κ
	Not improved (0)	Improved (1)	Total images
Concordance in scores by both observers for reference image A
Not improved (0)	31	8	39	0.718
Improved (1)	4	44	48
Total Images	35	52	87
Concordance in scores by both observers for reference image B
Not improved (0)	1	0	1	1.000
Improved (1)	0	86	86
Total images	1	86	87