Table 3.

Intra- and inter-examiner consistency of assessment of primary and permanent dentitions at surface level using the CAST instrument and WHO criterion

		CAST				WHO
Intra-examiner		n	κ	SE	Po	n	κ	SE	Po
	Examiner 1	6912	0.94	0.004	97.4	723	1.00	0.00	100
	Examiner 2	8851	0.90	0.004	94.8	382	0.98	0.01	99.4
	Examiner 3	8208	0.96	0.003	96.6	538	0.94	0.01	97.4
Inter-examiner
	Examiner 1-2	8424	0.92	0.004	97.0	4838	0.96	0.01	98.3
	Examiner 2-3	7992	0.91	0.004	95.3	4848	0.95	0.01	97.9
	Examiner 1-3	6264	0.92	0.005	95.6	5204	0.95	0.01	97.8

n = number of surfaces; κ = kappa-coefficient value; SE = standard error; P_o = percentage of agreement.