Table 1.
Demographic and clinical characteristics of participantsa
| Characteristic | N | Mean (SD) or % |
|---|---|---|
| Age | 707 | 45.4 (10.2) |
| 20–39 years | 27.6% | |
| 40–59 years | 66.6% | |
| ≥60 years (max = 73) | 5.8% | |
| Female | 707 | 60.1% |
| Hispanic | 707 | 6.5% |
| Race | 707 | |
| White | 82.3% | |
| Black | 5.9% | |
| Asian | 7.8% | |
| Other | 4.0% | |
| Years of education, mean (SD) | 689 | 16.4 (3.0) |
| ≤12 years | 8.9% | |
| 13–15 years | 26.0% | |
| 16+ years | 65.2% | |
| Body mass index (kg/m2) | 663 | 27.7 (5.3) |
| <25 | 34.8% | |
| 25–29 | 35.7% | |
| ≥30 | 29.4% | |
| Smoking status | 663 | |
| Never smoked | 66.4% | |
| Past smoker | 25.9% | |
| Current smoker | 7.7% | |
| Diabetes | 663 | 3.5% |
| Systolic BP | 706 | 115.8 (12.5) |
| <120 mm Hg | 63.2% | |
| 120–139 mm Hg | 33.4% | |
| ≥140 mm Hg | 3.4% | |
| Diastolic BP | 706 | 75.6 (8.6) |
| <80 mm Hg | 71.0% | |
| 80–89 mm Hg | 23.4% | |
| ≥90 mm Hg | 5.7% | |
| BP ≥ 140/90 mm Hg | 706 | 7.2% |
Abbreviation: BP, blood pressure.
aBlood pressure characteristics were based on the average of 3 manual readings during Visit 1. Participants who withdrew from the study prior to the fifth visit (n = 44) were missing data pertaining to body mass index, smoking status, and diabetes, and some (n = 18) were missing years of education. One participant’s Visit 1 blood pressure readings were lost prior to data entry.