Table 1.

Inter-rater reliability of ultrasound features of OA at knee, hand and hip joints

	Kappa (95% CI)
Right medial femoral knee osteophyte	0.86 (0.72, 0.99)
Right lateral femoral knee osteophyte	0.92 (0.82, 1.00)
Left medial femoral knee osteophyte	0.77 (0.60, 0.93)
Left lateral femoral knee osteophyte	0.79 (0.62, 0.95)
Right medial tibial knee osteophyte	0.75 (0.54, 0.96)
Right lateral tibial knee osteophyte	0.49 (0.18, 0.81)
Left medial tibial knee osteophyte	0.73 (0.53, 0.93)
Left lateral tibial knee osteophyte	0.65 (0.42, 0.88)
Right knee effusion	0.92 (0.82, 1.00)
Left knee effusion	0.79 (0.61, 0.96)
CMC OA	0.69 (0.42, 0.95)
MCP OA	0.50 (0.02, 0.99)
PIP OA	0.62 (0.30, 0.93)
DIP OA	0.69 (0.39, 1.00)
Right hip OA	0.69 (0.36, 1.00)
Left hip OA	0.40 (0.07, 0.74)
Any hip OA	0.47 (0.19, 0.75)