Table 1.
General demographic and clinical characteristics of the study subjects at admission
| Variables | All patients (%) | No. of outcomes (%) | P value |
|---|---|---|---|
| Gender | 0.242 | ||
| Female | 36 (20.6%) | 14 (25.9%) | |
| Male | 139 (79.4%) | 40 (74.1%) | |
| Age( years) | 0.018 | ||
| < 52 | 122 (69.7%) | 31 (57.4%) | |
| ≥ 52 | 53 (30.3%) | 23 (42.6%) | |
| Smoking | 0.071 | ||
| No | 70 (40.0%) | 27 (50.0%) | |
| Yes | 105 (60.0%) | 27 (50.0%) | |
| Alcohol | 0.450 | ||
| No | 82 (46.9%) | 23 (42.6%) | |
| Yes | 93 (53.1%) | 31 (57.4%) | |
| BMI | 0.648 | ||
| < 18.4 | 5 (2.9%) | 1 (1.9%) | |
| 18.5–23.9 | 45 (25.7%) | 12 (22.2%) | |
| ≥ 24 | 125 (71.4%) | 41 (75.9%) | |
| HTN | 0.487 | ||
| No | 55 (31.4%) | 15 (27.8%) | |
| Yes | 120 (68.6%) | 39 (72.2%) | |
| DM | 0.503 | ||
| No | 174 (99.4%) | 54 (100%) | |
| Yes | 1 (0.6%) | 0 (0%) | |
| Previous CAD history | 0.894 | ||
| No | 169 (96.6%) | 52 (96.3%) | |
| Yes | 6 (3.4%) | 2 (3.7%) | |
| Phase | 0.069 | ||
| Acute | 160 (91.4%) | 53 (98.1%) | |
| Subacute | 11 (6.3%) | 0 (0%) | |
| Chronic | 4 (2.3) | 1 (1.9%) | |
| Time from onset to admission (h) | < 0.001 | ||
| < 15 | 105 (60.0%) | 41 (75.9%) | |
| ≥ 15 | 70 (40.0%) | 13 (24.1%) | |
| Systolic blood pressure (mmHg) | 0.632 | ||
| < 140 | 91 (52.0%) | 28 (51.9%) | |
| ≥ 140 | 84 (48.0%) | 26 (48.1%) | |
| Diastolic blood pressure (mmHg) | < 0.001 | ||
| < 90 | 128 (73.1%) | 39 (72.2%) | |
| ≥ 90 | 47 (26.9%) | 15 (27.8%) | |
| Shock | < 0.001 | ||
| No | 164 (93.7%) | 47 (87.0%) | |
| Yes | 11 (6.7%) | 7 (13.0%) | |
| Mean Arterial Pressure (mmHg) | 0.455 | ||
| < 70 | 11 (6.3%) | 5 (9.26%) | |
| 70–105 | 101 (57.7%) | 32 (59.26%) | |
| ≥ 105 | 63 (36.0%) | 17 (31.48%) | |
| Pulse pressure (mmHg) | < 0.001 | ||
| < 40 | 29 (16.6%) | 10 (18.5%) | |
| ≥ 40 | 146 (83.4%) | 44 (81.5%) | |
| Heart rate (b.p.m.) | < 0.001 | ||
| < 77 | 54 (30.9%) | 10 (18.5%) | |
| ≥ 77 | 121 (69.1%) | 44 (81.5%) | |
| Chest pain | < 0.001 | ||
| No | 28 (16.0%) | 11 (20.4%) | |
| Yes | 147(84.0%) | 43 (79.6%) | |
| Back pain | 0.062 | ||
| No | 74 (42.3%) | 23 (42.6%) | |
| Yes | 101 (57.7%) | 31 (57.4%) | |
| Abdominal pain | < 0.001 | ||
| No | 158 (90.3%) | 44 (81.5%) | |
| Yes | 17 (9.7%) | 10 (18.5%) | |
| Altered consciousness | < 0.001 | ||
| No | 168 (96.0%) | 51 (94.4%) | |
| Yes | 7 (4.0%) | 3 (5.6%) | |
| ST-segment deviation on ECG | < 0.001 | ||
| No | 117 (66.9%) | 37 (68.5%) | |
| Yes | 58 (33.1%) | 17 (31.5%) | |
| Pericardial effusion | 0.444 | ||
| No | 101 (57.7%) | 22 (40.7%) | |
| Yes | 74 (42.3%) | 32 (59.3%) | |
| Pleural effusion | 0.326 | ||
| No | 91 (52.0%) | 32 (59.3%) | |
| Yes | 84 (48.0%) | 22 (40.7%) | |
| Postoperative hospital stay | 0.013 | ||
| < 13 | 56 (32.0%) | 36 (66.7%) | |
| ≥ 13 | 119 (68.0%) | 18 (33.3%) | |
| ICU hospital stay | < 0.001 | ||
| < 3 | 19 (10.9%) | 17 (31.5%) | |
| ≥ 3 | 156 (89.1%) | 37 (68.5%) |
Abbreviations: BMI Body Mass Index, HTN Hypertension, DM Diabetes Mellitus, b.p.m. beats per minute, ECG Electrocardiogram, CAD coronary artery disease
Notes: ‘outcome’ was defined as the presence of death under investigation; P-values represent comparisons between survivors and patients with the endpoint event (death)