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. 2016 Oct 28;475(3):861–869. doi: 10.1007/s11999-016-5137-0

Table 2.

Intraclass correlation coefficients (ICC)

Measure ICC
First measurement
ICC
Second measurement
Agreement
Intraobserver reliability
 AI 0.93 0.91 Excellent
 LCEA 0.74 0.55 Fair to good
 FEAR index 0.99 0.99 Excellent
Rater = JW Rater = MW
Intraobserver reliability
 AI 0.95 0.95 Excellent
 LCEA 0.73 0.68 Fair to good
 FEAR Index 0.99 0.99 Excellent

AI = acetabular index; LCEA = lateral center-edge angle; FEAR = Femoro-Epiphyseal Acetabular Roof; JW = Jan Weidner; MW = Michael Wyatt.