Table 1

Comparison of study sample and United States population

VariableSample proportion (%)United States census proportion (%)
Age (n=863)
    18–394445
    40–643937
    ≥651717
Gender (n=943)
    Female6352
    Male3748
Household income (n=821)
    < $10 000514
    10 000–14 999109
    15 000–24 9991617
    25 000–34 9992214
    35 000–49 9992116
    50 000–74 9991517
    ≥75 0001114
Education (n=939)
    Not a high school graduate1019
    High school graduate3434
    Some college2827
    College graduate1514
    Advanced degree127
Race (n=886)
    White8584
    African-American1112
    Asian/Pacific Islander24
    Native American/Alaska Native21
Hispanic origin (n=934)
    Yes69
    No9591
Geographic region (n=943)
    Northeast1720
    Midwest2624
    South3935
    West1821