Figure 2From: Dickkopf-1 (Dkk-1) in plasma and synovial fluid is inversely correlated with radiographic severity of knee osteoarthritis patients Scattergram showing the inverse correlation between plasma Dkk-1 levels in patients with OA and severity classified according to Kellgren and Lawrence grading scale (r = -0.78, p < 0.001).Back to article page