Fig. 2From: Nomogram for prediction of gestational diabetes mellitus in urban, Chinese, pregnant womenCalibration results. Nomogram-predicted probability of GDM is plotted on the x-axis; actual probability of GDM is plotted on the y-axis. The ideal calibration line means an intercept of 0 and a slope of 1 for the calibration plot. Exploratory cohort (a); Internal validation cohort (b); External validation cohort (c)Back to article page