Table 1—

Characteristics of 5,944 U.S. adults with glucose tolerance data (NHANES III)

CharacteristicMenWomen
n2,8313,113
Age (year)54.5 ± 0.355.2 ± 0.4
Age at menarche (year)12.7 ± 0.0
Race/ethnicity
    Non-Hispanic white86%88%
    Non-Hispanic black10%8%
    Mexican American4%4%
Parental history of diabetes (yes)22%24%
Education (<12 years) (%)26%26%
Household income (<$20,000/year)22%31%
Smoking (ever smoker)73%49%
BMI (kg/m2)*27.5 ± 0.127.6 ± 0.2
Percent body fat*25.1 ± 0.236.8 ± 0.3
HOMA-IR1.00 ± 1.020.93 ± 1.02
Glucose tolerance
    Normal62%58%
    IGT24%28%
    Diabetes14%14%
  • Data are weighted means ± SE or weighted proportions.

  • *

    * BMI and percent body fat was evaluated for 7,400 and 6,778 subjects, respectively, including subjects who do not have valid OGTT data.

  • The value for the HOMA-IR is the geometric mean (anti-log of SE). HOMA-IR was determined for 4,658 adults without diabetes.