Table 1.
Subject characteristics by race and sex.
| White Women N=166 | African American Women N=147 | p | White Men N=104 | African American Men N=95 | p | |
|---|---|---|---|---|---|---|
| Age (yrs) | 52±9 | 50±9 | 0.17 | 52±9 | 48±9 | 0.003 |
| Education | <0.001 | <0.001 | ||||
| --College Graduate | 113 (72%) | 61 (42%) | 64 (70%) | 25 (28%) | ||
| --Some college | 35 (22%) | 43 (30%) | 17 (18%) | 29 (33%) | ||
| --High School or GED | 10 (6%) | 40 (28%) | 11 (12%) | 34 (39%) | ||
| Current smokers | 16 (10%) | 24 (17%) | 0.08 | 13 (14%) | 29 (32%) | 0.005 |
| History of diabetes | 8 (5%) | 19 (13%) | 0.01 | 7 (8%) | 11 (13%) | 0.28 |
| Waist circumference (cm) | 92±17 | 99±15 | <0.001 | 103±14 | 101±16 | 0.36 |
| SBP (mm Hg) | 118±17 | 126±20 | <0.001 | 121±16 | 123±18 | 0.46 |
| DBP (mm Hg) | 75±10 | 80±12 | <0.001 | 79±11 | 81±11 | 0.39 |
| Triglycerides (mg/dL) | 127±80 | 96±37 | 0.001 | 155±91 | 100±45 | <0.001 |
| HDL-C (mg/dL) | 65±19 | 61±14 | 0.18 | 49±15 | 52±13 | 0.02 |
| Glucose (mg/dL) | 89±16 | 96±34 | 0.62 | 99±33 | 92±13 | 0.10 |
| CRP (mg/L) | 1.5 (0.6–3.6) | 2.2 (1.3–5.1) | <0.001 | 1.3 (0.8–2.8) | 1.4 (0.5–4.0) | 0.93 |
| Total BDI-II score | 5 (2–10) | 6 (2–13) | 0.79 | 5 (1–8) | 6 (2–13) | 0.03 |
| Moderate to severe depression | 9 (5%) | 14 (10%) | 0.17 | 11 (11%) | 5 (5%) | 0.17 |
| Total PSQI score | 5 (4–7) | 7 (4–9) | 0.002 | 5 (3–8) | 6 (4–10) | 0.056 |
Values shown are mean±SD, N (%), or median (IQR). Comparisons between Whites and African Americans were made using t-tests, Wilcoxon rank sum tests, or χ2. BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; HDL-C, high density lipoprotein cholesterol; CRP, high sensitivity C-reactive protein; PSQI, Pittsburgh Sleep Quality Index.