Table 1.
Population characteristics of the study population (n = 48)
| Characteristics | All subjects |
|---|---|
| Age, y | 49.3 ± 10.1 |
| Female, n (%) | 22 (45.8) |
| BMI, kg/m2 | 30.1 ± 4.5 |
| Race, n (%) | |
| White | 40 (83.3) |
| Black/African-American | 3 (6.3) |
| Asian | 3 (6.3) |
| American Indian or Alaska Native | 1 (2.1) |
| More than 1 of the above | 1 (2.1) |
| Screening systolic BP, mmHg | 123 ± 7 |
| Screening diastolic BP, mmHg | 77 ± 5 |
| Screening potassium, mEq/L | 4.30 ± 0.35 |
| Screening eGFR, mL/min/1.73 m2 | 89 ± 13 |
| Sodium suppression | |
| 24-hour urine sodium, mmol | 255.0 (193.1, 304.3) |
| Sodium restriction | |
| 24-hour urine sodium, mmol | 13.6 (7.8, 20.4) |
| Dexamethasone suppression | |
| Cortisol, μg/dL | 0.9 (0.7, 1.3) |
| Cosyntropin stimulation | |
| Cortisol, μg/dL | 20.8 (18.7, 24.6) |
Abbreviations: BMI, body mass index; BP, blood pressure; eGFR, estimated glomerular filtration rate.