Table 1.
Baseline Characteristics According to Hypertension Category*
| Characteristic | Normotensive† (N=32,978) | IDH (N=1,141) | ISH (N=3,158) | SDH (N=1,983) | P-value |
|---|---|---|---|---|---|
| Cardiovascular Risk Factors | |||||
| Age, mean ± SD (yrs) | 54.0 ± 6.7 | 54.8 ± 6.7 | 59.4 ± 8.2 | 56.4 ± 7.2 | <0.0001 |
| BMI, mean ± SD(kg/m2) | 25.5 ± 4.7 | 28.0 ± 5.6 | 28.7 ± 5.9 | 29.5 ± 6.1 | <0.0001 |
| Non-Hispanic White Ethnicity (%) | 94.4 | 89.8 | 93.4 | 90.8 | <0.0001 |
| History of High Cholesterol (%) | 27.1 | 37.7 | 43.0 | 45.0 | <0.0001 |
| History of Diabetes (%) | 2.1 | 4.7 | 9.0 | 7.6 | <0.0001 |
| Current Smoker (%) | 13.3 | 12.2 | 12.1 | 12.5 | 0.18 |
| Family history of MI (%) | 12.8 | 14.2 | 13.4 | 14.2 | 0.16 |
| Vigorous Activity < 1× per wk (%) | 56.5 | 63.6 | 66.1 | 69.9 | <0.001 |
| HRT User (%) | 42.4 | 42.1 | 40.1 | 39.4 | 0.008 |
| Anti-Hypertensive Therapy (%) | 8.1 | 35.3 | 42.0 | 53.5 | <0.001 |
| Blood Pressure Measures | |||||
| SBP, median (IQR) (mmHg) | 115 (115,125) | 135 (125,135) | 145 (145,145) | 145 (145,155) | <0.0001 |
| DBP, median (IQR) (mmHg) | 80 (70,80) | 93 (93,93) | 88 (80,88) | 93 (93,93) | <0.0001 |
BMI-body-mass index; MI-myocardial infarction, HRT-hormone replacement therapy; SBP -systolic blood pressure; IQR-interquartile range; DBP-diastolic blood pressure.
*
Blood pressure categories are based on self-report.
†
The normotensive category includes participants with a history of hypertension who report taking anti-hypertensive medications.