Table 1

Unadjusted race-specific means (SD) for hormonal factors and selected anthropometric measures at the years 2, 7, and 10 examinations in black (n = 483) and white (n = 695) mean ages 24–34 years at the year 2 CARDIA examination

VariableExam yearBlack menWhite menP for difference
naMean(SD)naMean(SD)
Total testosterone (ng/ml)24826.5(2.0)6926.40(2.00)0.40
73975.8(1.7)6145.75(1.80)0.57
104835.8(2.0)6955.69(1.80)0.36
10–2482−0.7(1.9)692−0.71(1.70)0.98
SHBG (nmol/liter)248131.7(12.8)69231.40(12.63)0.72
739730.1(13.6)61430.45(13.31)0.71
1048329.2(13.4)69529.95(13.55)0.34
10–2481−2.46(11.4)692−1.45(10.44)0.12
Free testosterone (ng/ml)24810.17(0.06)6920.17(0.06)0.34
73970.16(0.05)6140.15(0.05)0.18
104830.16(0.06)6950.15(0.05)0.05
10–2481−0.02(0.06)692−0.02(0.06)0.42
BMI (kg/m2)247725.8(4.7)69525.0(3.7)0.006
739327.4(5.3)61426.1(4.2)<0.0001
1048027.9(5.5)69526.7(4.4)<0.0001
10–24742.1(2.6)6951.6(2.2)0.001
Waist circumference (cm)248084.2(11.0)69485.6(9.4)0.03
739688.9(12.6)61288.7(10.7)0.79
1047990.8(13.6)69290.6(11.2)0.75
10–24766.7(7.2)6915.2(6.1)0.0002
  • a Because of missing data, the total number of black and white men may be less than 483 and 695, respectively.