Risk factors for cut-outs in geriatric intertrochanteric fractures with cephalomedullary nailing after obtaining acceptable reduction: a case–control study

Table 1 Reliability between two independent observers for measuring variables

Variable	ICC or κ	95% CI	Reliability
Singh index	0.561	0.430 to 0.692	Moderate
Cleveland zone	0.730	0.634 to 0.826	Excellent
AO/OTA classification	0.738	0.620 to 0.856	Excellent
Parker ratio (AP)	0.916	0.882 to 0.941	Almost perfect
Parker ratio (Lat)	0.924	0.893 to 0.947	Almost perfect
Tip-apex distance	0.906	0.868 to 0.933	Almost perfect
Calcar reference tip-apex distance	0.939	0.914 to 0.957	Almost perfect

AO/OTA AO Foundation and Orthopaedic Trauma Association, AP anteroposterior view, LAT lateral view, ICC intraclass correlation coefficient, CI confidence interval

ISSN: 1471-2474