Prevalence of normoglycemic, prediabetic and diabetic A1c levels

Table 3 Percentage of different ethnic groups 20 years and older with self-reported prediabetes n (%)

NHANES 2007-2008			NHANES 2009-2010
Ethnicity	Weighted	SD	Weighted	SD	P
Mexican American	325142/6566166 (5.0)		379370/7569333 (5.0)
Normoglycemic A1c (< 5.7%)	102664/325142 (31.6)	0.33	154730/379370 (40.8)	0.43	< 0.0001
Prediabetic A1c (5.7%-6.4%)	140099/325142 (43.1)	0.46	161539/379370 (42.6)	0.43	< 0.0001
Diabetic A1c (≥ 6.5%)	82379/325142 (25.3)	0.44	63101/379370 (16.6)	0.22	0.8521
Other Hispanic	172116/6566166 (2.6)		175097/7569333 (2.3)
Normoglycemic A1c (< 5.7%)	94137/172116 (54.7)	0.16	104638/175097 (59.8)	0.43	0.3841
Prediabetic A1c (5.7%-6.4%)	73430/172116 (42.7)	0.43	56802/175097 (32.4)	0.42	0.3472
Diabetic A1c (≥ 6.5%)	4549/172116 (2.6)	0.36	13657/175097 (7.8)	0.12	0.9457
Non-Hispanic White	4757294/6566166 (72.5)		5976593/7569333 (79.0)
Normoglycemic A1c (< 5.7%)	2571794/4757294 (54)	0.46	2696814/5976593 (45.1)	0.4	0.7869
Prediabetic A1c (5.7%-6.4%)	1872875/4757294 (39.4)	0.43	2311252/5976593 (38.7)	0.4	0.0222
Diabetic A1c (≥ 6.5%)	312625/4757294 (6.6)	0.23	968527/5976593 (16.2)	0.09	0.0024
Non-Hispanic Black	645476/6566166 (9.8)		757648/7569333 (10)
Normoglycemic A1c (< 5.7%)	269742/645476 (41.8%)	0.46	212317/757648 (28%)	0.44	< 0.0001
Prediabetic A1c (5.7%-6.4%)	210513/645476 (32.6%)	0.42	483049/757648 (63.8%)	0.44	< 0.0001
Diabetic A1c (≥ 6.5%)	165221/645476 (25.6%)	0.43	62282/757648 (8.2%)	0.16	< 0.0001
Other/Multi-Racial	666138/6566166 (10.1%)		280625/7569333 (3.7%)
Normoglycemic A1c (< 5.7%)	527892/666138 (79.2%)	0.27	113305/280625 (40.3%)	0.41	0.0104
Prediabetic A1c (5.7%-6.4%)	138246/666138 (20.8%)	0.27	58388/280625 (20.8%)	0.41	0.7737
Diabetic A1c (≥ 6.5%)	0/666138 (0.0%)	0.00	108932/280625 (38.8%)	0.13	0.0067
Total	n = 6566166		n = 7569333

SD: Shine-dalgarnosequence.