Fig. 5

Visual analysis results of Model C. A ROC curve of analysis cohort. B Calibration plots of analysis and validation cohorts. C ROC curve of validation cohort. D Nomogram plot of analysis cohort. ROC receiver operating characteristic curve, AUC area under the curve, fT3 free triiodothyronine, fT4 free thyroxine, TRAb thyroid stimulating hormone receptor autoantibody, m month. The nomogram plot is used by entering the categorical status of each patient-related factor, calculating scores for each item, and summing the total score to assess the risk of refractory GD