Table 1.
Baseline characteristics of the study population
| Variables | Mean±s.d. |
|---|---|
| Age (years) | 63±11 |
| Males (%) | 64 |
| African-Americans (%) | 53 |
| BMI, kg m−2 | 31.5±6.4 |
| Obesity (%) | 56 |
| Diabetes (%) | 31 |
| Coronary artery disease (%) | 25 |
| Hyperlipidemia (%) | 81 |
| Antihypertensive agents (n) | 4.9±1.6 |
| Systolic blood pressure (mm Hg) | 162±22 |
| Diastolic blood pressure (mm Hg) | 87±17 |
| Serum creatinine (mg dl−1) | 1.5±0.3 |
| eGFR (ml min−1 per 1.73 m2) | 48.6±8.7 |
| Serum potassium (mEq l−1) | 4.0±0.5 |
Abbreviations: BMI, body mass index; eGFR, estimated glomerular filtration rate.