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. 2022 Sep 28;3(11):877–884. doi: 10.1302/2633-1462.311.BJO-2022-0125.R1

Table IV.

Bland-Altman bias values with lower and upper limits of agreement for the reader agreement analysis.

Variable Reader 1 vs Reader 2 (LOA) Reader 1 vs Reader 3 (LOA) Reader 2 vs Reader 3 (LOA)
Left hip Right hip Left hip Right hip Left hip Right hip
LCEA,° -1.2 (-8.5 to 6.2) 2.0 (-4.7 to 8.7) 1.0 (-9.5 to 11.6) 2.0 (-7.0 to 11.0) 2.2 (-7.1 to 11.5) 0 (-9.2 to 9.2)
Tönnis angle,° -2.8 (-9.1 to 3.6)* -1.9 (-8.2 to 4.4) -1.7 (-8.2 to 4.8) -2.7 (-8.7 to 3.3) 1.1 (-5.0 to 7.1) -0.9 (-7.3 to 5.6)
Sharp’s angle,° -0.8 (-4.5 to 2.8) 0.2 (-3.8 to 4.1) -0.9 (-5.3 to 3.4) -0.5 (-5.3 to 4.4) -0.1 (-5.1 to 4.9) -0.6 (-5.6 to 4.4)
CCD angle,° 5.5 (0.4 to 10.7)* 4.0 (-2.1 to 10.0)* 3.8 (-6.5 to 14.1)* 1.7 (-9.5 to 13.0) -1.7 (-12.1 to 8.7) -2.2 (-12.7 to 8.2)
Femoral head coverage, % 1.0 (-7.5 to 9.4) 1.2 (-7.0 to 9.5) 2.7 (-7.6 to 13.1) 3.1 (-5.5 to 11.6) 1.8 (-8.0 to 11.6) 1.8 (-7.8 to 11.5)
Pelvic obliquity,° -0.3 (-1.6 to 0.9) -0.4 (-1.7 to 0.9) 0.0 (-0.8 to 0.7)
*

Large bias was observed.

CCD, caput-collum-diaphyseal; LCEA, lateral centre-edge angle; LOA, limit of agreement.