Fig. 2

ROC analysis predicting diagnostic utility of AS patients compared with HCs. A) Area under the curve (AUC) of total IgM predicting diagnostic utility of AS patients, B) AUC of total IgG, C) AUC of anti-protein phosphatase magnesium dependent 1A (PPM1A)-IgM, D) AUC of anti-PPM1A-IgG