Table 1.

Agreement matrix of two diagnostic methods and six Risser Grades

Digital radiography	Sonography
Risser Grade	0	I	II	III	IV	V	Total
0	13	0	0	0	0	0	13
I	0	3	0	0	0	0	3
II	0	0	6	0	0	0	6
III	0	0	0	3	0	0	3
IV	0	0	0	0	6	1	7
V	0	0	0	0	5	9	14
Total	13	3	6	3	11	10	46

6 = 0.835, P < 0.001