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Construction of the DKD diagnostic model. (A) Nomogram of the DKD diagnostic model on the basis of 4 diagnostic markers. (B, C) The calibration (B) and ROC curves (C) were used to evaluate the diagnostic efficacy of the DKD diagnostic nomogram. (D) DCA illustrating the NB assessing the outcome. ****P < 0.001, ***P < 0.005, **P < 0.01, *P < 0.05.
