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. 2016 May 17;17(5):744. doi: 10.3390/ijms17050744

Figure 2.

Figure 2

Comparison among C-peptide indices for predicting need for future insulin therapy (receiver operating characteristic (ROC) analysis). FCPR: fasting C-peptide; FCPRI: fasting C-peptide to glucose ratio; PCPR: postprandial C-peptide; PCPRI: postprandial C-peptide to glucose ratio; uCPR: 24 h urinary C-peptide; uCPRI: uCPR divided by fasting glucose level. Area under the curve (AUC) of PCPRI was the greatest (AUC: 0.779) among the indices, indicating the highest predictive value. Adapted from reference [8].