Table 2.

Selected baseline characteristics by quartiles of BMI in the Chicago Heart Association Detection Project in Industry, 1967-1973

Men (n = 20,314)
Women (n = 15,106)
Q1 (≤24.12)Q2 (24.13-26.30)Q3 (26.31-28.61)Q4 (≥28.62)Q1 (≤20.98)Q2 (20.99-23.24)Q3 (23.25-26.15)Q4 (≥26.16)
Number5,0855,1155,0375,0773,8053,7483,7803,773
Age (y)*33 (22, 56)38 (25, 57)41 (26, 58)43 (26, 59)27 (20, 53)39 (21, 57)45 (22, 59)48 (25, 61)
Plasma glucose (mg/dL)*115 (83, 175)123 (87, 185)129 (90, 194)136 (95, 205)111 (82, 170)118 (85, 180)122 (87, 188)134 (92, 196)
BMI*,22.7 (20.1, 23.9)25.3 (24.4, 26.1)27.4 (26.5, 28.4)30.5 (28.9, 34.7)19.7 (17.9, 20.8)22.1 (21.3, 23.0)24.5 (23.5, 25.8)28.9 (26.6, 35.0)
Education (%)
    <High school17.616.719.824.310.715.723.234.6
    High school30.628.331.033.452.352.050.544.6
    >High school51.855.049.242.337.132.426.420.8
Smoking (%)
    Never24.727.326.427.838.841.446.552.3
    Former23.930.332.832.015.016.116.116.0
    Current
        ≤20 cigarettes/d35.627.826.524.637.734.031.525.6
        >20 cigarettes/d15.814.614.315.68.58.56.06.1
Race (%)
    White86.791.292.091.282.485.384.584.5
    African American9.15.75.36.314.712.113.113.2
    Other4.23.12.82.52.92.62.42.3
  • * Median value (10th and 90th percentile).

  • Weight (kg)/height (m)2.