Table 3 ROC-Analysis of the indices for osteopenia and osteoporosis.

From: Plain radiographic indices are reliable indicators for quantitative bone mineral density in male and female patients before total hip arthroplasty

 

Osteopenia—AUC (95%-CI)

Osteoporosis—AUC (95%-CI)

Total

Male

Female

Total

Male

Female

CCR

0.589 (0.510–0.668)

0.496 (0.365–0.626)

0.665 (0.564–0.766)

0.668 (0.521–0.814)

0.385 (0.014–0.756)

0.752 (0.608–0.896)

CFI

0.730 (0.662–0.798)

0.655 (0.544–0.766)

0.798 (0.715–0.880)

0.783 (0.658–0.907)

0.544 (0.259–0.828)

0.861 (0.742–0.980)

CBR-7

0.835 (0.781–0.888)

0.771 (0.679–0.863)

0.875 (0.807–0.942)

0.854 (0.765–0942)

0.748 (0.601–0.894)

0.865 (0.758–0.971)

CBR-10

0.832 (0.777–0.887)

0.734 (0.631–0.837)

0.885 (0.823–0.948)

0.844 (0.738–0.950)

0.631 (0.373–0.889)

0.901 (0.809–0.994)

  1. AUC Area-Under-the-Curve, CCR Canal-Calcar-Ratio, CFI Canal-Flare-Index, CBR-7 Canal-Bone-Ratio at 7 cm, CBR-10 Canal-Bone-Ratio at 10 cm, CI Confidence-Interval.
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