Table 1.
A1C and proportions of elevated levels (A1C >6%) by population characteristics in adults aged ≥20 years without diagnosed diabetes, U.S. 1999–2006
| Unweighted n | A1C | A1C >6.0% | |
|---|---|---|---|
| Overall | 15,934 | 5.3 ± 0.01 | 3.8 ± 0.17 |
| Age-group | |||
| 20–39 years | 6,318 | 5.1 ± 0.10 | 1.0 ± 0.13 |
| 40–59 years | 4,789 | 5.4 ± 0.01 | 4.4 ± 0.33 |
| 60–69 years | 2,070 | 5.5 ± 0.03 | 9.1 ± 0.73 |
| ≥70 years | 2,757 | 5.5 ± 0.02 | 8.3 ± 0.59 |
| Sex | |||
| Male | 7,524 | 5.3 ± 0.01 | 4.3 ± 0.26 |
| Female | 8,410 | 5.3 ± 0.01 | 3.4 ± 0.22 |
| Race/ethnicity | |||
| Non-Hispanic white | 8,310 | 5.3 ± 0.01 | 3.2 ± 0.20 |
| Non-Hispanic black | 3,038 | 5.4 ± 0.01 | 6.6 ± 0.45 |
| Mexican American | 3,436 | 5.4 ± 0.01 | 3.9 ± 0.36 |
| Other | 998 | 5.4 ± 0.03 | 6.0 ± 0.83 |
| Hypertension | |||
| No | 10,144 | 5.2 ± 0.97 | 2.2 ± 0.16 |
| Yes | 5,780 | 5.5 ± 0.01 | 7.3 ± 0.41 |
| Hypercholesterolemia | |||
| No | 10,347 | 5.2 ± 0.95 | 2.9 ± 0.18 |
| Yes | 5,494 | 5.4 ± 0.01 | 5.7 ± 0.35 |
| Smoking | |||
| Never smoker | 8,300 | 5.3 ± 0.01 | 3.5 ± 0.23 |
| Former smoker | 4,029 | 5.4 ± 0.02 | 5.1 ± 0.39 |
| Current smoker | 3,583 | 5.3 ± 0.01 | 3.2 ± 0.32 |
| BMI | |||
| <25 kg/m2 | 5,199 | 5.2 ± 0.01 | 1.1 ± 0.14 |
| 25–<30 kg/m2 | 5,578 | 5.3 ± 0.01 | 3.2 ± 0.26 |
| ≥30 kg/m2 | 4,789 | 5.5 ± 0.01 | 7.8 ± 0.46 |
| Education | |||
| Post high school | 7,403 | 5.3 ± 0.01 | 2.8 ± 0.21 |
| High school | 3,799 | 5.3 ± 0.01 | 4.0 ± 0.35 |
| Less than high school | 4,701 | 5.4 ± 0.01 | 6.7 ± 0.45 |
| History of cardiovascular disease | 1,168 | 5.5 ± 0.02 | 8.7 ± 0.91 |
| Alcohol consumption | |||
| Never | 4,553 | 5.4 ± 0.01 | 5.8 ± 0.41 |
| Former | 1,490 | 5.4 ± 0.02 | 6.2 ± 0.73 |
| Current | 8,794 | 5.3 ± 0.01 | 2.7 ± 0.18 |
| C-reactive protein quartiles | |||
| 0.01–<0.08 mg/dl | 3,472 | 5.2 ± 0.01 | 1.1 ± 0.17 |
| 0.08–<0.19 mg/dl | 3,376 | 5.3 ± 0.01 | 2.7 ± 0.29 |
| 0.19–<0.44 mg/dl | 4,065 | 5.4 ± 0.01 | 4.4 ± 0.38 |
| 0.44–29.6 mg/dl | 4,527 | 5.5 ± 0.02 | 7.5 ± 0.47 |