Table 1.

Adjusted mean1 values for demographic, health behavior, and clinical characteristics by serum GGT at baseline in the CARDIA Study, 1985–1986.

GGT at 0 yearP2
<25% (n = 847)25% to <50% (n = 1465)50% to <75% (n = 1503)75% to <90% (n = 557)≥90% (n = 472)
Demographic variables
 Black, %28.339.756.872.975.4<0.001
 Male, %21.737.452.863.568.1<0.001
 Age, years24.324.425.025.526.4<0.001
 Education, years14.013.913.913.713.3<0.001
Health behavior variables (year 0)
 Alcohol, g/day7.69.512.615.122.5<0.001
 Smoker, %22.426.430.932.847.5<0.001
 Physical activity, exercise units414.9421.4422.8423.9401.50.643
 BMI, kg/m223.323.924.626.026.2<0.001
Clinical variables (year 0)
 SBP,3 mmHg108.9109.1110.7112.4113.8<0.001
 DBP, mmHg67.367.968.769.971.0<0.001
 Fasting plasma glucose, mg/L8248198228438350.019
 Insulin, μIU/L10.110.811.613.613.9<0.001
 Triglycerides,4 mg/L568589644738828<0.001
 LDL-C, mg/L10341069109911581152<0.001
 HDL-C, mg/L5385325305135420.002
 RBC,× 1010/L477478480485485<0.001
 Hematocrit, %41.742.042.342.642.8<0.001
 Hemoglobin, g/L141142143143144<0.001
 WBC,× 109/L5.76.06.26.46.5<0.001
 Platelets, ×109/L265271274280280<0.001