Table 3. Cut-off values evaluated by Papoz et al. (9)*.

HbA1c cut-off value	Sensitivity	Specificity	Youden index
5.0	111/112 = 99.1%	83/489 = 17.0%	0.161
5.5	110/112 = 98.2%	225/489 = 46.0%	0.442
6.0	100/112 = 89.3%	381/489 = 77.9%	0.672
6.5	78/112 = 69.6%	465/489 = 95.1%	0.647
7.0	60/112 = 53.7%	479/489 = 98.0%	0.517

* with corresponding sensitivities, specificities, and Youden index; HbA1c: hemoglobin A1c