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. 2018 Apr 2;13(4):e0194750. doi: 10.1371/journal.pone.0194750

Fig 5. Receiver operating characteristic (ROC) curve analysis of HbA1c.

Fig 5

The sensitivity is plotted against 100–specificity to indicate accuracy. The optimal value for sensitivity was 81%, which corresponded to a specificity of 82%. This represents a cut off level for HbA1c of 7.9% (63 mmol.mol-1).