Table 1.
Baseline Demographic and Clinical Characteristics of Patients With Troponin Fold 0 to 1 and >1 on Presentation
| Troponin Fold 0 to 1 N=6645 | Troponin Fold >1 N=7416 | Absolute Standardized Difference (%) | |
|---|---|---|---|
| Demographic characteristics | |||
| Age, y | 60.16±12.43 | 63.11±13.54 | 22.6 |
| Male | 4863 (73.2%) | 4869 (65.7%) | 16.4 |
| Female | 1782 (26.8%) | 2547 (34.3%) | 16.4 |
| Black or African American | 856 (12.9%) | 926 (12.5%) | 1.19 |
| White | 5654 (85.1%) | 6345 (85.6%) | 1.33 |
| Uninsured | 728 (11.0%) | 706 (9.5%) | 4.74 |
| History and clinical characteristics | |||
| Hypertension | 4547 (68.4%) | 5190 (70.0%) | 3.47 |
| Dyslipidemia | 4218 (63.5%) | 4480 (60.5%) | 6.32 |
| Diabetes mellitus | 1567 (23.6%) | 2003 (27.0%) | 7.88 |
| Tobacco use | 3081 (46.4%) | 3135 (42.3%) | 8.2 |
| Previous MI | 1721 (25.9%) | 1482 (20.0%) | 14.1 |
| Previous PCI | 1845 (27.8%) | 1474 (19.9%) | 18.6 |
| Previous HF | 343 (5.2%) | 487 (6.6%) | 5.98 |
| Peripheral artery disease | 418 (6.3%) | 596 (8.0%) | 6.78 |
| Chronic lung disease | 823 (12.4%) | 925 (12.5%) | 0.27 |
| Cardiogenic shock at time of PCI | 305 (4.6%) | 471 (6.4%) | 7.75 |
| Creatinine, mg/dL | 1.04±0.38 | 1.10±0.51 | 11.8 |
| Pre‐PCI | |||
| Troponin I, ng/mL | 0.04±0.07 | 5.88±17.63 | 46.8 |
| Troponin T, ng/mL | 0.02±0.01 | 0.70±1.32 | 73.0 |
| Pre‐PCI TIMI | |||
| 0 flow | 4276 (64.3%) | 4637 (62.5%) | 3.78 |
| 1 flow | 596 (9.0%) | 649 (8.8%) | 0.77 |
| 2 flow | 757 (11.4%) | 959 (12.9%) | 4.71 |
| 3 flow | 739 (11.2%) | 824 (11.1%) | 0.03 |
| In‐hospital mortality | 117 (1.8%) | 375 (5.1%) | 18.2 |
Variables expressed as mean±SD or n (%). HF indicates heart failure; MI, myocardial infarction; PCI, percutaneous coronary intervention; TIMI, thrombolysis in myocardial infarction.