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)
    ≥126.8 (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)
    ≥207.8 (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)
    ≥6517.7 (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)
    12–190.4 (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)
    20–391.9 (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)
    40–598.1 (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)
    60–7417.6 (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)
    ≥7515.2 (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
        ≥126.5 (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)
        ≥207.5 (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)
        ≥6518.1 (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
        ≥127.1 (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)
        ≥208.0 (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)
        ≥6517.4 (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
        ≥126.2 (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)
        ≥206.9 (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)
        ≥6516.0 (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
        ≥129.3 (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)
        ≥2011.2 (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)
        ≥6525.2 (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
        ≥126.5 (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)
        ≥207.9 (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)
        ≥6526.6 (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.