Fig. 4From: Serum proteome analysis identifies a potential biomarker for axial psoriatic arthritisThe level of PEDF in the patients in the verification cohort. a The comparison of serum PEDF between axPsA and pPsA with ELISA. (***p < 0.001). b Receiver operating characteristic curve analysis of candidate biomarkers for axPsA vs. pPsA. PEDF pigment epithelium-derived factor, axPsA axial psoriatic arthritis, pPsA peripheral psoriatic arthritisBack to article page