Tab.1.

Weighted Kappa coefficient for intra-rater agreement

Rater number	Kappa	Weighted Kappa
		Kw	95%CI
1	0.50	0.82	0.75-0.89
2	0.46	0.75	0.65-0.85
3	0.61	0.83	0.76-0.91
4	0.59	0.85	0.79-0.92
5	0.71	0.87	0.79-0.95
6	0.46	0.78	0.69-0.87
7	0.42	0.79	0.71-0.86
8	0.48	0.81	0.74-0.88
9	0.49	0.78	0.71-0.87