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Table 1

Crude prevalence of diagnosed diabetes, undiagnosed diabetes (A1C ≥6.5%), total diabetes (diagnosed and undiagnosed combined), total diabetes that is undiagnosed, and at high risk for diabetes (A1C ≥6.0 to <6.5%), by age, sex, and race/ethnicity: NHANES 2003–2006 (n = 13,094)

Diagnosed diabetesUndiagnosed diabetesTotal diabetesTotal diabetes that is undiagnosedAt high risk for diabetes
Combined age-groups (years)      
    ≥12 6.8 (6.1–7.5) 1.6 (1.2–1.9) 8.4 (7.6–9.2) 19.0 (15.2–22.7) 3.1 (2.7–3.4) 
    ≥20 7.8 (7.0–8.6) 1.8 (1.4–2.2) 9.6 (8.7–10.5) 19.0 (15.2–22.7) 3.5 (3.0–3.9) 
    ≥65 17.7 (15.6–19.7) 3.5 (2.6–4.3) 21.1 (18.7–23.5) 16.3 (12.9–19.8) 8.1 (6.6–9.6) 
Age-specific groups (years)      
    12–19 0.4 (0.2–0.7) 0.1 (0.0–0.2) 0.5 (0.2–0.8) 17.5 (0.0–36.4) 0.3 (0.1–0.5) 
    20–39 1.9 (1.4–2.4) 0.6 (0.3–0.9) 2.5 (1.9–3.1) 25.6 (16.3–35.0) 0.7 (0.4–1.0) 
    40–59 8.1 (6.9–9.4) 2.0 (1.3–2.7) 10.1 (8.7–11.5) 19.5 (13.1–25.9) 3.7 (3.1–4.4) 
    60–74 17.6 (15.7–19.5) 3.5 (2.1–4.9) 21.1 (18.7–23.4) 16.5 (10.7–22.2) 7.1 (5.5–8.8) 
    ≥75 15.2 (12.9–17.6) 3.5 (2.4–4.6) 18.7 (16.6–20.9) 18.8 (12.7–24.9) 8.7 (7.2–10.2) 
Sex by age (years)      
    Men      
        ≥12 6.5 (5.6–7.5) 1.8 (1.2–2.4) 8.3 (7.4–9.3) 21.8 (15.2–28.4) 3.1 (2.7–3.6) 
        ≥20 7.5 (6.4–8.5) 2.1 (1.4–2.8) 9.6 (8.5–10.6) 21.8 (15.2–28.4) 3.5 (3.0–4.1) 
        ≥65 18.1 (15.3–20.9) 3.8 (2.2–5.3) 21.8 (18.5–25.2) 17.2 (11.2–23.2) 8.3 (6.6–10.0) 
    Women      
        ≥12 7.1 (6.2–7.9) 1.4 (1.1–1.7) 8.4 (7.4–9.4) 16.3 (13.3–19.3) 3.0 (2.4–3.6) 
        ≥20 8.0 (7.1–8.9) 1.6 (1.2–1.9) 9.6 (8.4–10.7) 16.3 (13.3–19.3) 3.4 (2.7–4.1) 
        ≥65 17.4 (14.8–20.0) 3.2 (2.2–4.3) 20.6 (17.5–23.7) 15.7 (11.8–19.5) 7.9 (6.0–9.9) 
Race/ethnicity by age (years)      
    Non-Hispanic white      
        ≥12 6.2 (5.3–7.1) 1.3 (0.8–1.8) 7.5 (6.5–8.5) 17.5 (12.1–22.9) 2.7 (2.3–3.2) 
        ≥20 6.9 (6.0–7.9) 1.5 (0.9–2.0) 8.4 (7.3–9.5) 17.5 (12.1–23.0) 3.1 (2.6–3.6) 
        ≥65 16.0 (13.8–18.2) 2.8 (1.9–3.8) 18.8 (16.2–21.4) 15.1 (10.9–19.3) 7.7 (6.1–9.3) 
    Non-Hispanic black      
        ≥12 9.3 (8.0–10.5) 2.1 (1.6–2.5) 11.4 (10.0–12.7) 18.3 (14.6–21.9) 5.7 (4.7–6.6) 
        ≥20 11.2 (9.7–12.6) 2.5 (1.9–3.0) 13.7 (12.1–15.2) 18.2 (14.5–21.9) 6.7 (5.6–7.8) 
        ≥65 25.2 (19.7–30.7) 7.5 (4.9–10.1) 32.7 (26.8–38.5) 22.9 (15.4–30.4) 13.2 (9.8–16.7) 
    Mexican American      
        ≥12 6.5 (5.3–7.7) 2.5 (1.5–3.5) 9.0 (7.4–10.6) 27.9 (19.4–36.3) 2.3 (1.5–3.1) 
        ≥20 7.9 (6.5–9.2) 3.0 (1.8–4.2) 10.9 (9.0–12.8) 27.7 (19.2–36.2) 2.8 (1.8–3.7) 
        ≥65 26.6 (22.5–30.7) 5.2 (2.5–8.0) 31.8 (28.4–35.2) 16.4 (7.9–25.0) 8.3 (3.7–12.8) 
Diagnosed diabetesUndiagnosed diabetesTotal diabetesTotal diabetes that is undiagnosedAt high risk for diabetes
Combined age-groups (years)      
    ≥12 6.8 (6.1–7.5) 1.6 (1.2–1.9) 8.4 (7.6–9.2) 19.0 (15.2–22.7) 3.1 (2.7–3.4) 
    ≥20 7.8 (7.0–8.6) 1.8 (1.4–2.2) 9.6 (8.7–10.5) 19.0 (15.2–22.7) 3.5 (3.0–3.9) 
    ≥65 17.7 (15.6–19.7) 3.5 (2.6–4.3) 21.1 (18.7–23.5) 16.3 (12.9–19.8) 8.1 (6.6–9.6) 
Age-specific groups (years)      
    12–19 0.4 (0.2–0.7) 0.1 (0.0–0.2) 0.5 (0.2–0.8) 17.5 (0.0–36.4) 0.3 (0.1–0.5) 
    20–39 1.9 (1.4–2.4) 0.6 (0.3–0.9) 2.5 (1.9–3.1) 25.6 (16.3–35.0) 0.7 (0.4–1.0) 
    40–59 8.1 (6.9–9.4) 2.0 (1.3–2.7) 10.1 (8.7–11.5) 19.5 (13.1–25.9) 3.7 (3.1–4.4) 
    60–74 17.6 (15.7–19.5) 3.5 (2.1–4.9) 21.1 (18.7–23.4) 16.5 (10.7–22.2) 7.1 (5.5–8.8) 
    ≥75 15.2 (12.9–17.6) 3.5 (2.4–4.6) 18.7 (16.6–20.9) 18.8 (12.7–24.9) 8.7 (7.2–10.2) 
Sex by age (years)      
    Men      
        ≥12 6.5 (5.6–7.5) 1.8 (1.2–2.4) 8.3 (7.4–9.3) 21.8 (15.2–28.4) 3.1 (2.7–3.6) 
        ≥20 7.5 (6.4–8.5) 2.1 (1.4–2.8) 9.6 (8.5–10.6) 21.8 (15.2–28.4) 3.5 (3.0–4.1) 
        ≥65 18.1 (15.3–20.9) 3.8 (2.2–5.3) 21.8 (18.5–25.2) 17.2 (11.2–23.2) 8.3 (6.6–10.0) 
    Women      
        ≥12 7.1 (6.2–7.9) 1.4 (1.1–1.7) 8.4 (7.4–9.4) 16.3 (13.3–19.3) 3.0 (2.4–3.6) 
        ≥20 8.0 (7.1–8.9) 1.6 (1.2–1.9) 9.6 (8.4–10.7) 16.3 (13.3–19.3) 3.4 (2.7–4.1) 
        ≥65 17.4 (14.8–20.0) 3.2 (2.2–4.3) 20.6 (17.5–23.7) 15.7 (11.8–19.5) 7.9 (6.0–9.9) 
Race/ethnicity by age (years)      
    Non-Hispanic white      
        ≥12 6.2 (5.3–7.1) 1.3 (0.8–1.8) 7.5 (6.5–8.5) 17.5 (12.1–22.9) 2.7 (2.3–3.2) 
        ≥20 6.9 (6.0–7.9) 1.5 (0.9–2.0) 8.4 (7.3–9.5) 17.5 (12.1–23.0) 3.1 (2.6–3.6) 
        ≥65 16.0 (13.8–18.2) 2.8 (1.9–3.8) 18.8 (16.2–21.4) 15.1 (10.9–19.3) 7.7 (6.1–9.3) 
    Non-Hispanic black      
        ≥12 9.3 (8.0–10.5) 2.1 (1.6–2.5) 11.4 (10.0–12.7) 18.3 (14.6–21.9) 5.7 (4.7–6.6) 
        ≥20 11.2 (9.7–12.6) 2.5 (1.9–3.0) 13.7 (12.1–15.2) 18.2 (14.5–21.9) 6.7 (5.6–7.8) 
        ≥65 25.2 (19.7–30.7) 7.5 (4.9–10.1) 32.7 (26.8–38.5) 22.9 (15.4–30.4) 13.2 (9.8–16.7) 
    Mexican American      
        ≥12 6.5 (5.3–7.7) 2.5 (1.5–3.5) 9.0 (7.4–10.6) 27.9 (19.4–36.3) 2.3 (1.5–3.1) 
        ≥20 7.9 (6.5–9.2) 3.0 (1.8–4.2) 10.9 (9.0–12.8) 27.7 (19.2–36.2) 2.8 (1.8–3.7) 
        ≥65 26.6 (22.5–30.7) 5.2 (2.5–8.0) 31.8 (28.4–35.2) 16.4 (7.9–25.0) 8.3 (3.7–12.8) 

Data are % (95% CI). Diagnosed diabetes determined by self-report on interview. Values by age alone and by sex include those of race/ethnic groups not listed separately.

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