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. 2016 Sep 12;6(2):120–125. doi: 10.1055/s-0036-1592140

Table 3. Measures of intraobserver agreement for grading of osteoarthritis on MRI and radiographs.

		All patients		SLAC		SNAC
		Kappa (k_w)	Interpretation	Kappa (k_w)	Interpretation	Kappa (k_w)	Interpretation
Radiographs	Reader A	0.50	Moderate	0.43	Moderate	0.54	Moderate
Radiographs	Reader B	0.63	Substantial	0.63	Substantial	0.60	Moderate
MRI	Reader C	0.81	Almost perfect	0.67	Substantial	0.83	Almost perfect

Abbreviations: MRI, magnetic resonance imaging; SNAC, scaphoid nonunion advanced collapse; SLAC, scapholunate advanced collapse.