Table 1.
Descriptive statistics and demographic distribution.
| Variable | Normal cTnI (n = 183) | Elevated cTnI (n = 17) | P value |
|---|---|---|---|
| Age | 63.1 ± 10.8 | 62.7 ± 14 | 0.079 |
| Male (%) | 57.9 | 41.2 | 0.208 |
| African Americans (%) | 65.5 | 47.1 | 0.270 |
| Smoker (%) | 38.3 | 41.2 | 0.800 |
| Hypertension (%) | 79.2 | 64.7 | 0.217 |
| Diabetes (%) | 38.3 | 47.1 | 0.606 |
| CAD history (%) | 18.0 | 47.1 | 0.009 |
| CKD (%) | 5.5 | 17.6 | 0.086 |
| Systolic BP (mmHg) | 161.8 ± 23.2 | 153 ± 32.8 | 0.072 |
| Hemoglobin (g/dL) | 13.4 ± 2.6 | 12.2 ± 1.8 | 0.014 |
| Creatinine (mg/dL) | 1.24 ± 1.0 | 1.65 ± 1.6 | 0.143 |
| Ldl (mg/dL) | 119.9 ± 41 | 109.6 ± 34 | 0.249 |
| Peak cTnI (ng/mL) | 0.048 ± 0.06 | 2.04 ± 1.1 | 0.000 |
| CK-MB (ng/mL) | 3.23 ± 3.1 | 19.09 ± 13.8 | 0.000 |
| LVEF (%) | 50.2 ± 15.9 | 47.9 ± 21.6 | 0.008 |
| Length of stay (days) | 8.7 ± 13.2 | 15.3 ± 11.2 | 0.384 |
CAD: coronary artery disease. CKD: chronic kidney disease. LVEF: left ventricular ejection fraction. cTnI: cardiac troponin I.