Radiographic prediction of lunate morphology in Asians using plain radiographic and capitate-triquetrum distance analyses: reliability and compatibility with magnetic resonance arthrography (MRA) findings

Table 2 Intra-observer agreement among the three raters

	Assessment	Cohen kappa	95% CI of kappa	Interpretation
Observer 1	PA radiographic analysis	0.570	0.416, 0.724	Moderate
Observer 1	CTD analysis	0.660^a	0.528, 0.792	Substantial
Observer 2	PA radiographic analysis	0.446	0.282, 0.610	Moderate
Observer 2	CTD analysis	0.540^a	0.383, 0.688	Moderate
Observer 3	PA radiographic analysis	0.552	0.409, 0.696	Moderate
Observer 3	CTD analysis	0.567^a	0.411, 0.722	Moderate
Overall	PA radiographic analysis	0.517		Moderate
Overall	CTD analysis	0.589^*		Moderate

ISSN: 1471-2474