| Variable | Placebo (n=26) |
Magnesium L-lactate (n=24) |
|---|---|---|
| Age (years) | 68.0 ± 10.4 | 61.0 ± 13.1 |
| Gender (Male) (%) | 17 (65.4) | 21 (87.5) |
| Ethnic Origin (%) | ||
| White | 22 (84.5) | 18 (75.0) |
| Black | 2 (7.7) | 5 (20.8) |
| Hispanic | 2 (7.7) | 1 (4.2) |
| Primary Prevention (%) | 19 (73.1) | 19 (79.2) |
| Secondary Prevention (%) | 7 (26.9) | 5 (20.8) |
| History of Alcohol Use (%) | 13 (50.0) | 9 (37.5) |
| History of Cigarette Smoking (%) | 4 (16.7) | 9 (37.5) |
| History of Diabetes (%) | 6 (23.1) | 6 (25.0) |
| History of Hypertension (%) | 20 (76.9) | 17 (70.8) |
| History of Myocardial Infarction (%) | 19 (73.0) | 14 (58.3) |
| History of Heart Failure (%) | 15 (57.7) | 18 (75.0) |
| Baseline Serum Creatinine (mg/dL) | 1.08 ± 0.28 | 1.09 ± 0.24 |
| Baseline Serum Magnesium (mEq/L) | 2.23 ± 0.19 | 2.18 ± 0.19 |
| Baseline Intracellular Electrolytes (mEq/IU) | ||
| Magnesium | 32.5 ± 2.0 | 32.4 ± 1.7 |
| Calcium | 4.14 ± 0.9 | 4.34 ± 1.7 |
| Sodium | 4.53 ± 0.9 | 4.04 ± 0.9 |
| Potassium | 124.28 ± 33.4 | 127.0 ± 46.9 |
| Phosphorus | 16.14 ± 2.0 | 16.79 ± 2.8 |
| Baseline Medication Use (%) | ||
| Beta-Blocker | 23 (88.5) | 22 (91.7) |
| CCB | 2 (7.7) | 1 (4.2) |
| ACEI | 18 (69.2) | 13 (54.2) |
| ARB | 3 (11.5) | 7 (29.2) |
| Diuretics | 13 (50.0) | 13 (54.2) |
| Antiarrhythmics | 5 (19.2) | 2 (8.3) |
| Mean Systolic Blood Pressure (mm Hg) | 126.5 ± 19.3 | 123.8 ± 13.5 |
| Mean Diastolic Blood Pressure (mm Hg) | 75.1 ± 14.9 | 73.2 ± 7.4 |