Interobserver Agreement in Magnetic Resonance of the Sacroiliac Joints in Patients with Spondyloarthritis

Table 2

Interobserver agreement between local radiologist and expert radiologist.

Expert radiologist	Local radiologist
	Agreement	Disagreement	Total
	(%)	(%)
Normal	24 (96)	1 (4)	25/66	0.39	0.000
Acute	3 (50)	3 (50)	6/66	0.45	0.000
Chronic	4 (23.5)	13 (76.5)	17/66	0.31	0.000
Acute plus chronic	7 (38.9)	11 (61.1)	18/66	0.34	0.003
Total	38 (57.7)	28 (43.3)	66	0.37	0.000