The association between hip fracture and hip osteoarthritis: A case-control study

Table 1 Intra- and interobserver reliability measured by Cohen's κ

Radiographic method	Definition of disease positive	Intra-observer reliability			Inter-observer reliability
		Controls	Fractured side	Contralateral side	Controls	Fractured side	Contralateral side
Minimum joint space	≤ 2.5 mm	0.94*	0.91	0.89	0.84	0.80	0.82
Kellgren and Lawrence	≥ grade 2	0.76*	0.93	0.56	0.67	0.63	0.50

ISSN: 1471-2474