Fig. 3
From: Risk prediction models of gestational diabetes mellitus before 16 gestational weeks
Calibration curves. A Basic model in the train cohort. B Basic model in the internal validation cohort. C Extended model in the train cohort. D Extended model in the internal validation cohort. Nomogram-predicted probability of GDM is plotted on the x-axis; actual probability of GDM is plotted on the y-axis. The line adjacent to the ideal line represents the predictive accuracy. GDM, gestational diabetes mellitus