Fig. 5
From: Validation of the suction device Nimble for the assessment of skin fibrosis in systemic sclerosis
a Skin stiffness score (kSS) of Nimble measurements grouped into SSc patients with mRSS4total = 0 and mRSS4total > 0. b Skin stiffness score (kSS) of Cutometer measurements grouped into SSc patients with mRSS4total = 0 and mRSS4total > 0. c Receiver operating characteristic (ROC) curve tests for sensitivity and specificity of suction measures. Nimble measurements showed a larger area under the ROC curve (AUC) compared to Cutometer measurements, indicating a better ability to distinguish between SSc patients with a total mRSS4total = 0 and SSc patients with a total mRSS4total > 0. Cut-off values were evaluated by the Youden’s index, indicated in red