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Table 3 Diagnostic efficacy (sensitivity and specificity) for different cut-off values of capillary HbA1c assessed by receiver operating characteristic (ROC) curve

From: Point-of-care capillary HbA1c measurement in the emergency department: a useful tool to detect unrecognized and uncontrolled diabetes

HbA1c (%) Sensitivity 1: specificity
3.000 1.000 1.000
5.550 0.857 0.392
5.650 0.857 0.308
5.750 0.857 0.273
5.850 0.857 0.245
5.950 0.857 0.182
6.050 0.857 0.147
6.150 0.762 0.119
6.250 0.714 0.112
6.350 0.690 0.084
6.450 0.667 0.056
6.550 0.643 0.021
6.650 0.571 0.014
6.750 0.548 0.014
6.850 0.548 0.007
6.950 0.524 0.000
7.050 0.476 0.000
7.150 0.429 0.000
  1. Diagnostic efficacy (sensitivity and specificity) for different cut-offs value of capillary HbA1c assessed by ROC (Receiver Operating Characteristic) curve. The best diagnostic performance is achieved with a cutoff of 6 % (marked in italics)