Table 1.
Baseline characteristics of study population.
| Overall | Hypertension status | p value | ||||
|---|---|---|---|---|---|---|
| Normal | Treated & controlled | Treated & uncontrolled | Untreated | |||
| N (%) | 13,947 (100) | 10,300 (73.9) | 743 (5.3) | 989 (7.1) | 1,915 (13.7) | |
| Age group, % | <0.001 | |||||
| 18–39 yrs | 52.2 | 61.5 | 11.9 | 5.5 | 20.6 | |
| 40–59 yrs | 31.4 | 29.7 | 46.3 | 34.1 | 36.0 | |
| ≥60 yrs | 16.5 | 8.8 | 41.9 | 60.4 | 43.5 | |
| Women, % | 50.8 | 50.7 | 63.9 | 58.8 | 42.6 | <0.001 |
| Race/ethnicity, % | <0.001 | |||||
| Non-Hispanic white | 75.2 | 74.9 | 78.7 | 75.8 | 75.4 | |
| Non-Hispanic black | 11.0 | 10.2 | 13.8 | 16.6 | 13.4 | |
| Mexican-American | 5.5 | 6.0 | 2.3 | 3.2 | 4.5 | |
| Other | 8.3 | 8.9 | 5.1 | 4.5 | 6.6 | |
| Education level, % | <0.001 | |||||
| <12 yrs | 23.6 | 21.4 | 30.7 | 39.2 | 30.3 | |
| 12–15 yrs | 55.7 | 56.6 | 55.0 | 45.9 | 53.5 | |
| ≥16 yrs | 20.7 | 22.0 | 14.2 | 14.9 | 16.3 | |
| BMI, kg/m2, (mean ± SE) | 26.3 ± 0.1 | 25.7 ± 0.1 | 29.8 ± 0.5 | 30.0 ± 0.3 | 28.4 ± 0.2 | <0.001 |
| SBP, mmHg, (mean ± SE) | 120.8 ± 0.4 | 115.0 ± 0.2 | 125.1 ± 0.6 | 153.7 ± 0.7 | 147.7 ± 0.5 | <0.001 |
| DBP, mmHg, (mean ± SE) | 74.0 ± 0.2 | 71.8 ± 0.2 | 76.2 ± 0.4 | 83.0 ± 0.6 | 85.7 ± 0.4 | <0.001 |
| Smoking status, % | <0.001 | |||||
| Never | 44.8 | 45.4 | 41.5 | 46.1 | 41.8 | |
| Former | 24.1 | 21.7 | 37.7 | 36.7 | 30.8 | |
| Current | 31.0 | 32.9 | 20.9 | 17.1 | 27.3 | |
| Alcohol intake, % | <0.001 | |||||
| Never | 56.0 | 54.1 | 68.4 | 72.1 | 57.0 | |
| 1–2 drinks/wk | 20.6 | 22.0 | 16.3 | 9.8 | 17.1 | |
| ≥3 drinks/wk | 23.4 | 23.9 | 15.3 | 18.1 | 25.9 | |
| TC, mg/dl, (mean ± SE) | 200.7 ± 0.7 | 195.0 ± 0.8 | 223.6 ± 1.9 | 227.5 ± 1.7 | 222.1 ± 1.4 | <0.001 |
| Lipid lowering medications use,% | 2.1 | 1.1 | 11.7 | 9.0 | 2.4 | <0.001 |
| Diagnosed diabetes, % | 4.2 | 2.8 | 13.6 | 13.6 | 6.1 | <0.001 |
BMI means body mass index; DBP, diastolic blood pressure; SBP means systolic blood pressure; TC means total cholesterol.