Table 1.
Study population characteristics
| Characteristic | Entire study population | Caucasian | African-American |
|---|---|---|---|
| n | 126 | 94 | 32 |
| Age (yr) | 30.5 (7.0) | 30.5 (6.8) | 30.6 (7.6) |
| BMI (kg/m2) | 38.0 (8.0) | 37.0 (7.1) | 41.0 (9.6) |
| Systolic blood pressure | 125.5 (13.6) | 124.9 (11.6) | 127.3 (18.5) |
| Diastolic blood pressure | 77.7 (11.2) | 76.9 (9.8) | 79.8 (14.4) |
| Fasting glucose (mmol/liter) | 5.1 (1.0) | 5.1 (1.0) | 5.1 (0.8) |
| Fasting insulin (μU/ml) | 18.0 (22.2) | 15.6 (12.7) | 24.9 (37.9) |
| 2-h glucose (mmol/liter) | 6.4 (2.3) | 6.3 (2.3) | 6.6 (2.2) |
| 2-h insulin (μU/ml) | 100.0 (111.7) | 88.6 (98.8) | 136.2 (141.6) |
| HOMA-IR | 4.2 (6.0) | 3.6 (3.0) | 6.1 (10.4) |
All characteristics are presented as mean (sd).