Table 5.

Catterall classification for initial and final rating of patients with Legg-Calve-Perthes disease

Initial rating	Final rating
	I	II	III	IV	Total
I	1	2	4	2	9
II	–	–	10	9	19
III	–	–	6	7	13
IV	–	–	–	24	24
Total	1	2	20	42	65

Percent agreement, 48%; intraclass correlation coefficient, 0.378 (95% CI, −0.006 to 0.634).