Table 2.

Estimated Number of U.S. Adults (Age ≥20 years) in Several Categories of Impaired Glucose Metabolism for 2007^a

	Total population	Prediabetes (IFG/IGT)	Diabetes
			Undiagnosed (FG/OGTT)b	Diagnosed (self-report)
Non-Hispanic White	151,789,928	44,474,449	8,500,236	10,018,135
Non-Hispanic Black	26,051,718	6,538,981	1,068,120	3,334,620
Mexican American	18,338,148	5,813,193	1,155,303	1,540,404
Total	196,179,794	56,826,623	10,723,659	14,893,159

^aPortions taken from Cowie and colleagues² and applied to census data from the 2007 U.S. population (www.census.gov).

^bAccording to fasting glucose or the oral glucose tolerance test.