Figure 3
From: Identification of progressors in osteoarthritis by combining biochemical and MRI-based markers
Diagnostic ability for separating healthy individuals from osteoarthritis subjects. The diagnostic ability for separating healthy individuals from osteoarthritis (OA) subjects (defined by Kellgren and Lawrence index >1) of key markers, illustrated by a receiver-operator characteristics diagram. The areas under the curves are: joint space width (JSW), 0.73; urinary marker of collagen type II C-telopeptide fragment (uCTX-II), 0.70; volume, 0.52; roughness, 0.81; homogeneity, 0.65; and longevity-tib, 0.87. The aggregate longevity-tib marker provided superior ability to all the individual markers (P < 0.05).