Development and Validation of a Risk Prediction Model for Foot Ulcers in Diabetic Patients

Figure 5

Calibration curve of the diabetic foot ulcer risk prediction model. (a) Calibration curve of the diabetic foot ulcer risk prediction model in the primary cohort. (b) Calibration curve of the diabetic foot ulcer risk prediction model in the validation cohort. The gray solid line “Ideal” at the zero-crossing point represents the ideal curve, and the black-dotted line “Nonparametric” represents the actual prediction accuracy of the model. The closer Nonparametric is to Ideal, the better the prediction accuracy of the model.

(a)

(b)