Table 1.
Baseline characteristics of the study cohort
| Characteristic | n=816 |
|---|---|
| Age, years | 70.8±9.0 |
| Male sex | 325 (39.8%) |
| Race | |
| White | 102 (12.5%) |
| Black | 129 (15.8%) |
| Hispanic | 570 (69.9%) |
| Others | 15 (1.8%) |
| Hypertension | 638 (78.2%) |
| Number of antihypertensive drugs (n=630) | |
| 0 | 192 (30.5%) |
| 1 | 208 (33.0%) |
| 2 | 164 (26.0%) |
| 3 | 57 (9.1%) |
| 4 | 9 (1.4%) |
| Antihypertensive drug class | |
| ACEi/ ARB (n=659) | 238 (36.1%) |
| Beta-blocker (n=816) | 206 (25.3%) |
| Calcium channel blocker (n=650) | 230 (35.4%) |
| Diuretics (n=648) | 167 (25.8%) |
| Hypercholesterolemia | 559 (68.5%) |
| Diabetes mellitus | 240 (29.4%) |
| Body mass index, kg/m2 | 28.3±4.8 |
| Coronary artery disease | 50 (6.1%) |
| Cigarette smoking | 430 (52.7%) |
| eGFR, mL/min/1.73m2 (n=790) | 73.9±18.3 |
| Atrial fibrillation | 50 (6.1%) |
| Education | |
| 8th grade or less | 331 (40.6%) |
| some high school | 122 (15.0%) |
| completed high school | 115 (14.1%) |
| some college | 117 (14.3%) |
| college graduate or more | 131 (16.1%) |
| Office BP variables | |
| Office SBP, mm Hg | 135.6±17.7 |
| Office DBP, mm Hg, | 78.6±9.4 |
| Office PP, mm Hg | 57.0±14.8 |
| Central BP variables | |
| Central SBP, mm Hg | 119.5±18.9 |
| Central DBP, mm Hg | 72.1±10.2 |
| Central PP, mm Hg | 47.4±15.3 |
| Ambulatory BP variables | |
| 24-h SBP, mm Hg | 124.8±14.4 |
| 24-h DBP, mm Hg | 71.4±8.6 |
| 24-h PP, mm Hg | 53.5±11.2 |
| Daytime SBP, mm Hg | 128.2±14.5 |
| Daytime DBP, mm Hg | 74.2±9.0 |
| Daytime PP, mm Hg | 54.0 ±11.3 |
| Nighttime SBP, mm Hg | 118.7±16.3 |
| Nighttime DBP, mm Hg | 66.1±9.4 |
| Nighttime PP, mm Hg | 52.6±11.9 |
Values are mean±standard deviation or n (percentage). ACEi, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor blocker; BP, blood pressure; DBP, diastolic blood pressure; eGFR, estimated glomerular filtration rate; PP, pulse pressure; SBP. systolic blood pressure.