Table 1.
Adjusted means and percentages of selected baseline risk factors and conditions by OH status at the baseline ARIC examination (1987–1989)
| OH no (n = 12,050) | OH yes (n = 652) | |
|---|---|---|
| Mean age, years | 53.9 (53.8–54.0) | 57.3 (56.8–57.7) |
| African-American, % | 25.6 (24.8–26.4) | 34.8 (31.1–38.6) |
| Male, % | 45.1 (44.2–46.0) | 44.2 (40.4–48.1) |
| Less than high school education, % | 22.4 (21.6–23.3) | 32.4 (28.7–36.3) |
| Mean body mass index | 27.6 (27.6–27.7) | 27.6 (27.2–28.0) |
| Mean carotid intima-media thickness, mm | 0.75 (0.75–0.75) | 0.82 (0.80–0.83) |
| Mean heart rate, beats/min | 66.5 (66.3–66.7) | 69.2 (68.4–69.9) |
| Low ankle-brachial index (=0.90), % | 2.9 (2.6–3.2) | 7.6 (5.9–9.9) |
| Diabetes mellitus, % | 11.5 (10.9–12.1) | 18.6 (15.9–21.8) |
| Hypertension, % | 33.3 (32.4–34.2) | 53.2 (49.2–57.3) |
| History of coronary heart disease, % | 4.8 (4.4–5.3) | 7.5 (5.7–9.8) |
| Current smokers, % | 25.6 (24.8–26.5) | 34.6 (30.9–38.4) |
| Current alcohol use, % | 56.9 (55.9–57.8) | 48.7 (44.5–52.8) |
| Self-reported fair/poor health status | 18.7 (17.9–19.5) | 30.7 (27.0–34.7) |
Means were adjusted for age, race and gender. Figures in parentheses are 95% CI. Body mass index is calculated by weight in kilograms per height in meters squared.