Table 1—

Individual-level and neighborhood characteristics by sex and race: the CARDIA Study 1995–1996

Men
Women
WhitesBlacksWhitesBlacks
n782599852860
Individual-level characteristics
 Age (years)35.5 ± 3.434.2 ± 3.835.7 ± 3.434.5 ± 3.9
 IRS score0.28 ± 0.890.30 ± 0.99−0.50 ± 0.890.03 ± 1.02
 BMI (kg/m2)26.5 ± 4.327.8 ± 5.625.4 ± 5.930.0 ± 7.8
 HDL cholesterol (mg/dl)43.0 ± 11.048.4 ± 14.355.0 ± 13.453.3 ± 13.4
 Triglycerides (mg/dl)117.8 ± 95.295.0 ± 71.082.2 ± 55.671.2 ± 40.6
 Fasting insulin (μU/ml)12.6 ± 7.814.6 ± 9.111.0 ± 5.215.4 ± 8.9
 Fasting glucose (mg/dl)88.4 ± 7.988.3 ± 9.183.4 ± 7.585.0 ± 9.1
 Systolic blood pressure (mmHg)111.3 ± 10.3115.2 ± 11.2103.1 ± 9.7110.5 ± 14.2
 Income (% distribution)*
  <$16,00021.829.7
  $16,000–$34,99926.3*34.929.2*28.2
  $35,000–$49,99920.617.918.520.0
  $50,000–$74,99923.925.6*24.422.2*
  ≥$75,00029.327.8
 Education (% distribution)
  High school diploma or less20.645.616.336.6
  1–3 years college21.032.221.237.2
  4 years college28.314.231.717.7
  Some graduate or professional school30.28.030.88.5
Neighborhood (block-group) characteristics
 Neighborhood score4.8 (1.5–8.3)−0.67 (−3.7–2.7)5.1 (1.7–8.3)−0.80 (−3.8–2.3)
 Median household income (1,000s US$)38.3 (28.5–51.6)25.6 (18.6–35.1)39.5 (29.8–51.7)26.1 (18.9–34.8)
 Median house value (1,000s US$)112.7 (71.8–211.6)66.1 (51.0–118.8)114.1 (77.3–210.7)67.7 (49.6–120.5)
 Percent earning interest income53 (41–64)28 (15–43)52 (41–64)27 (14–41)
 Percent complete high school90 (81–95)76 (64–87)90 (81–95)74 (63–85)
 Percent complete college35 (19–51)16 (8.0–27)34 (19–51)14 (7.4–25)
 Percent exec., manag., occup.36 (25–49)22 (14–31)36 (25–48)21 (14–31)
  • Data are means ± SD or medians (25th–75th percentile).

  • *

    * Because of small numbers, the two highest income categories were combined in whites and the two lowest categories were combined in blacks.

  • Percent in executive, managerial, or professional specialty occupations as defined by the U.S. Census.