Table 1.

Equipercentile values of Hb A_1c, fasting plasma glucose, and glycine albumin in US adults without diagnosed diabetes, NHANES 1999–2004 (n = 4785).

Hb A1c, %	FPG, mg/dLb	Glycated albumin, %	Percentile
4.7	79	10.5	2nd
5.2	89	12.2	25th
5.4	95	13.0	50th
5.5	100	13.8	69th
5.6	102	14.0	75th
5.7	105	14.4	82nd
6.2	126a	16.5	97th
6.5a	138	17.8	98th

^aHb A_1c of 6.5% and FPG of 126 mg/dL (6.99 mmol/L) are the clinical cut points for diabetes diagnosis.

^bTo convert glucose concentrations from mg/dL to mmol/L, multiply by 0.05551.