Fig. 1

Predictive value of week 4 PASI percentage improvement for predicting week 12 TSC responders. A The Spearman correlation between week 4 PASI score improvement and week 12 PASI score improvement. B The receiver operating characteristic (ROC) curves for PASI percentage improvement at week 4 predict TSC response at week 12. C Youden Index for percent change from baseline PASI at week 4. PASI60 response at week 4 had the highest Youden Index and was determined as the optimum threshold for predicting TSC responders. D Differences in the proportion of patients reaching PASI60 at week 4 between TSC and non-TSC responders. PASI Psoriasis Area and Severity Index, TSC total skin clearance