Table 3.
Medical characteristics of patients (n = 267–287).
| Demographic characteristics | Mean (SD) | Freq (valid %) |
|---|---|---|
| BMI category | ||
| Underweight (≤18.5 kg/m2) | 5 (1.7) | |
| Normal (18.6–24.9 kg/m2) | 49 (17.1) | |
| Overweight (25–29.9 kg/m2) | 121 (42.2) | |
| Obese (30–39.9 kg/m2) | 97 (33.8) | |
| Morbidly obese (≥40 kg/m2) | 15 (5.2) | |
| Arrival mode | ||
| Private vehicle | 71 (24.7) | |
| EMS | 162 (56.4) | |
| Transfer | 54 (18.8) | |
| Self-medicated prior to arrival (over-the-counter/prescribed analgesics or illicit drugs) | 13 (4.5) | |
| Prior out-patient cardiologist | 112 (39.0) | |
| Diabetes | 99 (34.5) | |
| Stroke history | 20 (7.0) | |
| Disability | 27 (9.4) | |
| Prior cardiac stent placement | 43 (15.0) | |
| Chest pain >24 hours prior to arrival | 56 (19.5) | |
| Known cardiac artery disease | 113 (39.4) | |
| Hemodynamic stability upon arrival | ||
| Stable | 226 (78.7) | |
| Unstable | 61 (21.3) | |
| LDL level | ||
| ≤70 mg/dL | 58 (21.7) | |
| >71 mg/dL | 209 (78.3) | |
| Highest troponin | ||
| ≤0.40 ng/ml | 52 (18.6) | |
| >0.41 ng/ml | 228 (81.4) | |
BMI = body mass index; EMS = emergency medical services; LDL = low-density lipoprotein.