Table 2.

Inter-rater agreement measured Cohen´s Kappa with quadratic weighting, intra class correlation coefficient and Pearson’s product moment correlation coefficient with 95 % confidence intervals of quantity and quality criteria of the first diagnosis of each participant

Raters	Objects Na	Kw	Intra Class Correlation	Pearson’s Correlation Coefficient
Quantity
1 vs 2	61	.82 (.70, .90)	.82 (.72, .89)	.82 (.72, .89)
3 vs 4	60	.83 (.75, .89)	.83 (.73, .89)	.84 (.74, .90)
2 vs 4	57	.72 (.55, .83)	.73 (.58, .83)	.73 (.57, .83)
5 vs 6	38	.82 (65,. 91)	.83 (.69, .91)	.82 (.68, .91)
7 vs 8	25	.75 (.61, .87)	.75 (.53, .88)	.75 (.53, .88)
Quality
1 vs 2	61	.75 (.59, .85)	.75 (.62, .84)	.76 (.63, .85)
3 vs 4	60	.76 (.55, .83)	.76 (.63, .85)	.76 (.63, .85)
2 vs 4	57	.73 (.59, .84)	.73 (.59, .83)	.73 (.59, .84)
5 vs 6	38	.74 (.51,. 87)	.75 (.57, .86)	.74 (.56, .86)
7 vs 8	25	.79 (.55, .91)	.80 (.61, .90)	.80 (.60, . 90)

^aQuality and quantity criteria of the accuracy measurement based on the D-Catch instrument.