Fig. 3

Calibration plot of the probabilities of CKD predicted by the nomogram model vs. the observed probabilities. Calibration at 1 year in the training set (A) and validation set (B). Calibration at 3 years in the training set (C) and validation set (D). Calibration at 5 years in the training set (E) and validation set (F) (all p > 0.05)