Table 1. Baseline characteristics of study subjects.
| Characteristics | All participants (n=268) |
African American (n=145) |
European American (n=123) |
P value |
|---|---|---|---|---|
| Age (years) | 44.6±10.1 | 42.9±9.80 | 46.7±10.1 | 0.0021 |
| Sex (women/men) | 268 (193/75) (72%/28%) | 145 (110/35) (75.9%/24.1%) | 123 (83/40) (67.5%/32.5%) | 0.13 |
| One parent with type 2 diabetes | 229 (85.4%) | 121 (83.4%) | 108 (87.8%) | 0.89 |
| Maternal diabetes | 125 (46.6%) | 80 (55.2%) | 45 (36.6%) | 0.0024 |
| Paternal diabetes | 104 (38.8%) | 41 (28.3%) | 63 (51.2%) | 0.0001 |
| Both parents with type 2 diabetes | 39 (14.6%) | 24 (16.6%) | 15 (12.2%) | 0.31 |
| Waist circumference (cm) | 94.6±15.9 | 95.4±16.2 | 93.7±15.5 | 0.37 |
| BMI (kg/m2) | 30.3±7.37 | 31.6±7.64 | 28.9±6.79 | 0.0032 |
| FPG (mg/dL) | 91.9±6.91 | 91.0±7.26 | 93.1±6.31 | 0.012 |
| 2hrPG (mg/dL) | 123±25.1 | 122±26.9 | 123±23.1 | 0.79 |
| HbA1c (%) | 5.58±0.44 | 5.69±0.49 | 5.44±0.34 | <0.0001 |
BMI, body mass index; FPG, fasting plasma glucose; HbA1c, glycated hemoglobin; 2hrPG, 2-hour postload plasma glucose during oral glucose tolerance test (OGTT).