Table 1—

Proportion and adjusted ORs of adults with controlled (A1C <7%) and uncontrolled (A1C ≥7%) type 2 diabetes in NHANES III and NHANES 1999–2002 by ethnicity

Non-Hispanic whitesNon-Hispanic blacksMexican AmericansAll subjectsP values*
NHANES III
    n1,142
    A1C (%)7.60 ± 0.148.21 ± 0.167.96 ± 0.137.7 ± 0.1
    Controlled diabetic subjects43.841.234.542.90.03
    Uncontrolled diabetic subjects56.258.865.57.96
    Adjusted glycemic controlRef.1.12 (0.76–1.65)0.67 (0.46–0.98)
NHANES 1999–2002
    n683
    A1C (%)7.30 ± 0.148.02 ± 0.168.09 ± 0.147.5 ± 0.1
    Controlled diabetic subjects48.436.534.245.00.03
    Uncontrolled diabetic subjects51.663.565.855.0
    Adjusted glycemic controlRef.0.64 (0.38–1.08)0.46 (0.30–0.71)
  • Data are percent, means ± SE, or OR (95% CI).

  • *

    * χ2 test comparing percentage of subjects with controlled and uncontrolled diabetes across various ethnic groups within NHANES surveys.

  • Adjusted for age, sex, BMI, duration of diabetes, and antidiabetes medication use.