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
| Variable . | Exam year . | Black men . | . | . | White men . | . | . | P for difference . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | . | n a . | Mean . | (SD) . | n a . | Mean . | (SD) . | . | ||||
| Total testosterone (ng/ml) | 2 | 482 | 6.5 | (2.0) | 692 | 6.40 | (2.00) | 0.40 | ||||
| 7 | 397 | 5.8 | (1.7) | 614 | 5.75 | (1.80) | 0.57 | |||||
| 10 | 483 | 5.8 | (2.0) | 695 | 5.69 | (1.80) | 0.36 | |||||
| 10–2 | 482 | −0.7 | (1.9) | 692 | −0.71 | (1.70) | 0.98 | |||||
| SHBG (nmol/liter) | 2 | 481 | 31.7 | (12.8) | 692 | 31.40 | (12.63) | 0.72 | ||||
| 7 | 397 | 30.1 | (13.6) | 614 | 30.45 | (13.31) | 0.71 | |||||
| 10 | 483 | 29.2 | (13.4) | 695 | 29.95 | (13.55) | 0.34 | |||||
| 10–2 | 481 | −2.46 | (11.4) | 692 | −1.45 | (10.44) | 0.12 | |||||
| Free testosterone (ng/ml) | 2 | 481 | 0.17 | (0.06) | 692 | 0.17 | (0.06) | 0.34 | ||||
| 7 | 397 | 0.16 | (0.05) | 614 | 0.15 | (0.05) | 0.18 | |||||
| 10 | 483 | 0.16 | (0.06) | 695 | 0.15 | (0.05) | 0.05 | |||||
| 10–2 | 481 | −0.02 | (0.06) | 692 | −0.02 | (0.06) | 0.42 | |||||
| BMI (kg/m2) | 2 | 477 | 25.8 | (4.7) | 695 | 25.0 | (3.7) | 0.006 | ||||
| 7 | 393 | 27.4 | (5.3) | 614 | 26.1 | (4.2) | <0.0001 | |||||
| 10 | 480 | 27.9 | (5.5) | 695 | 26.7 | (4.4) | <0.0001 | |||||
| 10–2 | 474 | 2.1 | (2.6) | 695 | 1.6 | (2.2) | 0.001 | |||||
| Waist circumference (cm) | 2 | 480 | 84.2 | (11.0) | 694 | 85.6 | (9.4) | 0.03 | ||||
| 7 | 396 | 88.9 | (12.6) | 612 | 88.7 | (10.7) | 0.79 | |||||
| 10 | 479 | 90.8 | (13.6) | 692 | 90.6 | (11.2) | 0.75 | |||||
| 10–2 | 476 | 6.7 | (7.2) | 691 | 5.2 | (6.1) | 0.0002 | |||||
| Variable . | Exam year . | Black men . | . | . | White men . | . | . | P for difference . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | . | n a . | Mean . | (SD) . | n a . | Mean . | (SD) . | . | ||||
| Total testosterone (ng/ml) | 2 | 482 | 6.5 | (2.0) | 692 | 6.40 | (2.00) | 0.40 | ||||
| 7 | 397 | 5.8 | (1.7) | 614 | 5.75 | (1.80) | 0.57 | |||||
| 10 | 483 | 5.8 | (2.0) | 695 | 5.69 | (1.80) | 0.36 | |||||
| 10–2 | 482 | −0.7 | (1.9) | 692 | −0.71 | (1.70) | 0.98 | |||||
| SHBG (nmol/liter) | 2 | 481 | 31.7 | (12.8) | 692 | 31.40 | (12.63) | 0.72 | ||||
| 7 | 397 | 30.1 | (13.6) | 614 | 30.45 | (13.31) | 0.71 | |||||
| 10 | 483 | 29.2 | (13.4) | 695 | 29.95 | (13.55) | 0.34 | |||||
| 10–2 | 481 | −2.46 | (11.4) | 692 | −1.45 | (10.44) | 0.12 | |||||
| Free testosterone (ng/ml) | 2 | 481 | 0.17 | (0.06) | 692 | 0.17 | (0.06) | 0.34 | ||||
| 7 | 397 | 0.16 | (0.05) | 614 | 0.15 | (0.05) | 0.18 | |||||
| 10 | 483 | 0.16 | (0.06) | 695 | 0.15 | (0.05) | 0.05 | |||||
| 10–2 | 481 | −0.02 | (0.06) | 692 | −0.02 | (0.06) | 0.42 | |||||
| BMI (kg/m2) | 2 | 477 | 25.8 | (4.7) | 695 | 25.0 | (3.7) | 0.006 | ||||
| 7 | 393 | 27.4 | (5.3) | 614 | 26.1 | (4.2) | <0.0001 | |||||
| 10 | 480 | 27.9 | (5.5) | 695 | 26.7 | (4.4) | <0.0001 | |||||
| 10–2 | 474 | 2.1 | (2.6) | 695 | 1.6 | (2.2) | 0.001 | |||||
| Waist circumference (cm) | 2 | 480 | 84.2 | (11.0) | 694 | 85.6 | (9.4) | 0.03 | ||||
| 7 | 396 | 88.9 | (12.6) | 612 | 88.7 | (10.7) | 0.79 | |||||
| 10 | 479 | 90.8 | (13.6) | 692 | 90.6 | (11.2) | 0.75 | |||||
| 10–2 | 476 | 6.7 | (7.2) | 691 | 5.2 | (6.1) | 0.0002 | |||||
Because of missing data, the total number of black and white men may be less than 483 and 695, respectively.