Table 2.

Total accuracy and kappa coefficient outcomes.

Age		Data number
		1	2	3	4	5	6	7	8	Average
0–2	Total accuracy [%]	53.8	51.4	41.2	38.3	43.2	52.3	–	–	46.7 ± 6.6
	Kappa	0.35	0.33	0.1	0.12	0.19	0.32	–	–	0.24 ± 0.11
3–6	Total accuracy [%]	54.36	53.15	51.83	50.66	42.42	42.71	51.3	45.3	49.0 ± 4.8
	Kappa	0.37	0.3	0.31	0.29	0.18	0.21	0.3	0.25	0.28 ± 0.06