Fig. 3From: Risk prediction of gestational diabetes mellitus in women with polycystic ovary syndrome based on a nomogram modela The ROC curves showing the precision of the GDM nomogram in patients. The AUC of the nomogram was 0.937, when the risk probability is 0.186 as the cutoff point,the validation model’s sensitivity and specificity were 0.833 and 0.923, respectively. b The y-axis represent the actual diagnosed GDM. The x-axis represent the predicted risk of GDM. The dotted diagonal line represent a perfect prediction by an ideal model. The predict curve showed a closer fit to the dotted diagonal line represented the model was well calibratedBack to article page