Calibration of the Nomogram
The calibration curves of the prediction nomogram using to predict the fetal distress risk in FGR patients demonstrated a good agreement in the total (Figure 4A) and the internal Validation (Figure 4B) cases. At the same time, the calibration curves of the prediction of admission to NICU risk nomogram in FGR patients proved a good agreement in the total (Figure 4C) and the internal Validation (Figure 4D) cases.