AIP and type 2 diabetes mellitus: When we compared between the PreDM and T2DM cohorts by analyzing the area under the ROC curve (AUC) obtained for the evaluated parameters, we noticed that the indices related to the MetS that we investigated showed a good performance, especially AIP (AUC of 0.623, sensitivity of 54%, specificity of 67%, cut-off of 0.49), followed by the CMI (AUC of 0.592, sensitivity of 54%, specificity of 59%, cut-off of 1.71), and lastly the CRR (AUC of 0.577, sensitivity of 53%, specificity of 59%, cut-off of 3.79).