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2011 National Diabetes Fact Sheet

Estimates of DIABETES Prevalence Using Various Definition Criteria

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Table 1. Percentage of the U.S. civilian noninstitutionalized population aged 20 years or older with undiagnosed diabetes, total diabetes, and proportion undiagnosed according to levels of fasting plasma glucose, 2-hour glucose tolerance, and hemoglobin A1c, National Health And Nutrition Examination Survey, 2005−2008

Percentage

Undiagnosed diabetes

Total diabetes

Proportion
undiagnosed

FPG ≥126
 

2.25
 

10.44
 

21.53
 

A1c ≥6.5
 

1.58
 

9.76
 

16.13
 

OGTT ≥200
 
4.5212.7135.57

FPG ≥126 or A1c ≥6.5
 
2.8611.0525.91

FPG ≥126 or OGTT ≥200
 
4.9113.1037.47

A1c ≥6.5 or OGTT ≥200
 
5.0413.2338.09

FPG ≥126 or A1c ≥6.5 or OGTT ≥200
 
5.4113.6039.78

Note: Estimates are based on the morning subsample of adults who had a 2-hour oral glucose tolerance test and vary slightly from the estimates presented in the National Diabetes Fact Sheet, 2011. Total diabetes includes diagnosed and undiagnosed diabetes. FPG, fasting plasma glucose; OGTT, oral glucose tolerance test; A1c, hemoglobin A1c. 
Data Source:
Centers for Disease Control and Prevention, National Center for Health Statistics, data from the National Health and Nutrition Examination Survey. Statistical analysis by the Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Division of Diabetes Translation. 
References for Laboratory Methods:
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey: Laboratory Files [Internet], 2010. Available at http://www.cdc.gov/nchs/nhanes/nhanes2005-2006/lab_methods_05_06.htm and http://www.cdc.gov/nchs/nhanes/nhanes2007-2008/lab_methods_07_08.htm; Cowie et al. Full accounting of diabetes and pre-diabetes in the U.S. population in 1988−1994 and 2005−2006. Diabetes Care 32:287−294, 2009.

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Table 2. Percentage of the U.S. civilian noninstitutionalized population aged 20 years or older with undiagnosed diabetes and total diabetes according to levels of fasting plasma glucose, 2-hour glucose tolerance, and hemoglobin A1c, by age, sex, and race/ethnicity, National Health And Nutrition Examination Survey, 2005−2008

Percentage

FPG ≥126

A1c ≥6.5

OGTT ≥200

Crude

Undiagnosed Diabetes

Total Diabetes

Undiagnosed Diabetes

Total Diabetes

Undiagnosed Diabetes

Total Diabetes

≥20
 

2.25
 

10.44
 

1.58
 

9.76
 

4.52
 

12.71
 

20–44
 

0.83
 

3.52
 

0.33
 

3.02
 

1.50
 

4.19
 

45–64
 

2.21
 

12.67
 

1.89
 

12.35
 

4.21
 

14.67
 

≥65
 

6.23
 

24.67
 

4.33
 

22.77
 

13.52
 

31.95
 

Age-adjusted

 

 

 

 

 

 

≥20
 

2.22
 

10.12
 

1.52
 

9.42
 

4.48
 

12.38
 

Men
 

3.05
 

10.79
 

1.94
 

9.68
 

4.57
 

12.32
 

Women
 

1.45
 

9.49
 

1.15
 

9.20
 

4.31
 

12.35
 

Non-Hispanic Whites
 

2.01
 

8.54
 

1.16
 

7.70
 

4.40
 

10.94
 

Non-Hispanic Blacks
 

2.74
 

17.08
 

3.45
 

17.79
 

3.54
 

17.88
 

Mexican-Americans
 

4.01
 

15.90
 

2.73
 

14.62
 

7.76
 

19.65
 
Percentage

FPG ≥126 or A1c ≥6.5

FPG ≥126 or OGTT ≥200

A1c ≥6.5 or OGTT ≥200

Crude

Undiagnosed Diabetes

Total Diabetes

Undiagnosed Diabetes

Total Diabetes

Undiagnosed Diabetes

Total Diabetes

≥20
 

2.86
 

11.05
 

4.91
 

13.10
 

5.04
 

13.23
 

20–44
 

0.86
 

3.56
 

1.70
 

4.40
 

1.54
 

4.23
 

45–64
 

3.00
 

13.46
 

4.59
 

15.05
 

5.00
 

15.46
 

≥65
 

8.08
 

26.51
 

14.42
 

32.86
 

14.76
 

33.20
 

Age-adjusted

 

 

 

 

 

 

≥20
 

2.81
 

10.71
 

4.86
 

12.76
 

4.96
 

12.86
 

Men
 

3.67
 

11.42
 

5.26
 

13.01
 

5.14
 

12.88
 

Women
 

2.01
 

10.05
 

4.42
 

12.46
 

4.73
 

12.77
 

Non-Hispanic Whites
 

2.46
 

9.00
 

4.71
 

11.24
 

4.75
 

11.28
 

Non-Hispanic Blacks
 

4.55
 

18.88
 

4.33
 

18.67
 

5.17
 

19.51
 

Mexican-Americans
 

4.48
 

16.37
 

8.16
 

20.05
 

8.23
 

20.12
 

FPG ≥126 or A1c ≥6.5 or OGTT ≥200

 

 

Crude

Undiagnosed Diabetes

Total Diabetes

 

 

 

 

≥20
 

5.41
 

13.60
 


 


 


 


 

20–44
 

1.74
 

4.43
 


 


 


 


 

45–64
 

5.38
 

15.84
 


 


 


 


 

≥65
 

15.58
 

34.02
 


 


 


 


 

Age-adjusted

 

 

 

 

 

 

≥20
 

5.33
 

13.23
 


 


 


 


 

Men
 

5.79
 

13.54
 


 


 


 


 

Women
 

4.84
 

12.89
 


 


 


 


 

Non-Hispanic Whites
 

5.03
 

11.57
 


 


 


 


 

Non-Hispanic Blacks
 

5.96
 

20.30
 


 


 


 


 

Mexican-Americans
 

8.62
 

20.51
 


 


 


 


 

Note: Estimates are based on the morning subsample of adults who had a 2-hour oral glucose tolerance test and vary slightly from the estimates presented in the National Diabetes Fact Sheet, 2011. Total diabetes includes diagnosed and undiagnosed diabetes. Age-adjusted on the basis of the 2000 U.S. standard population. FPG, fasting plasma glucose; OGTT, oral glucose tolerance test; A1c, hemoglobin A1c. 
Data Source:
Centers for Disease Control and Prevention, National Center for Health Statistics, data from the National Health and Nutrition Examination Survey. Statistical analysis by the Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Division of Diabetes Translation. 
References for Laboratory Methods:
Centers for Disease Control and Prevention. National Health and Nutrition Examination Survey: Laboratory Files [Internet], 2010. Available at http://www.cdc.gov/nchs/nhanes/nhanes2005-2006/lab_methods_05_06.htm and http://www.cdc.gov/nchs/nhanes/nhanes2007-2008/lab_methods_07_08.htm; Cowie et al. Full accounting of diabetes and pre-diabetes in the U.S. population in 1988−1994 and 2005−2006. Diabetes Care 32:287−294, 2009.

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