Optimal Hemoglobin A1c Levels for Screening of Diabetes and Prediabetes in the Japanese Population

Table 2

AUCs of ROC in each age category.

	Diabetes	Prediabetes
	AUC (95% CI)	AUC (95% CI)
All ages	0.918 (0.879–0.958)	0.714 (0.685–0.743)
<50 years	0.974 (0.936–1.000)	0.711 (0.622–0.800)
50–59 years	0.908 (0.850–0.965)	0.709 (0.672–0.747)
≥60 years	0.925 (0.865–0.985)	0.702 (0.647–0.758)

AUC: area under the curve; ROC: receiver operating characteristic curve.
CI: confidence interval.