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Table 4 Sensitivity of the bilateral (PsASon22) (a) and unilateral (PsASon13) (b) ultrasound composite scores to detect PsA characteristic ultrasound findings

From: Ultrasound composite scores for the assessment of inflammatory and structural pathologies in Psoriatic Arthritis (PsASon-Score)

(a) GSS/GSE PD-j/e GS-Teno PD-Teno GS-Peri PD-Peri Erosion Osteop./enthesop.
Small joints 89.2 81.6 71.4 75.0 95.2 92.9 91.9 100
DIP joints 84.6 63.6 n.a. n.a. 42.9 98.8
Large joints 93.3 97.7 n.a. n.a. n.a. n.a.
entheses 100 87.8 n.a. n.a. n.a. n.a. 71.9 94.0
(b) GSS/GSE PD-j/e GS-Teno PD-Teno GS-Peri PD-Peri Erosion Osteop./enthesop.
Small joints 92.8 73.5 66.7 57.1 57.1 50.0 79.7 100
DIPs 58.5 54.5 n.a. n.a. 35.7 96.4
Large joints 81.3 72.1 n.a. n.a. n.a. n.a.
entheses 100 67.3 n.a. n.a. n.a. n.a. 50.0 88.0