Table 1.
Baseline Characteristics of Study Population (n = 3006)
| DEMOGRAPHIC | |
| Mean Age (SD) | 81.56 (5.0) |
| Women | 1335 (44.4%) |
| Non-White | 317 (10.6%) |
| Education <= 12 Years | 1707 (56.8%) |
| Married or Living with Partner | 1514 (50.4%) |
| COMORBIDITIES AND PRIOR MEDICAL HISTORY | |
| Chronic Kidney Disease [Estimated Glomerular Filtration Rate < 60 ml/min/1.73m2] | 1804 (60.0%) |
| Coronary Artery Disease | 1603 (53.3%) |
| Revascularization | 1220 (40.6%) |
| Diabetes Mellitus | 1116 (37.1%) |
| Myocardial Infarction | 819 (27.3%) |
| Arrhythmias | 749 (24.9%) |
| Cancer | 646 (21.5%) |
| Congestive Heart Failure | 563 (18.7%) |
| Cerebrovascular Disease | 468 (15.6%) |
| Chronic Obstructive Pulmonary Disease | 426 (14.2%) |
| Peripheral Arterial Disease | 363 (12.1%) |
| Valvular Heart Disease | 349 (11.6%) |
| PRESENTATION AND HOSPITALIZATION CHARACTERISTICS | |
| Time from Symptom Onset to Presentation (Hours) | |
| < 6 | 1719 (57.2%) |
| >= 6 to < 12 | 346 (11.5%) |
| >= 12 | 925 (30.8%) |
| Mean Length of Stay [Days] (SD) | 5.93 (5.32) |
| Mean Heart Rate [bpm] [First Available] (SD) | 83.57 (22.66) |
| Mean Systolic Blood Pressure [mmHg] [First Available] (SD) | 145.88 (30.81) |
| Mean Hemoglobin Initial Value [First Available] (SD) | 12.82 (2.07) |
| Killip Class | |
| I | 2614 (87.0%) |
| II, III or IV | 392 (13.0%) |
| ST-Elevation Myocardial Infarction | 791 (26.3%) |
| Revascularization Status | |
| No Cardiac Catheterization | 458 (15.2%) |
| Cardiac Catheterization Without Revascularization | 494 (16.4%) |
| Percutaneous Coronary Intervention Only | 1700 (56.6%) |
| Coronary Artery Bypass Graft | 354 (11.8%) |
| In-hospital Complications | |
| Bleeding | 773 (25.7%) |
| Arrhythmia | 538 (17.9%) |
| Heart Failure | 414 (13.8%) |
| In-hospital Left Ventricular Ejection Fraction >= 50% | 1527 (50.8%) |
| Discharge Location - Home | 2417 (80.4%) |
| SOCIAL SUPPORT | |
| Participants Reporting Low Support | |
| Emotional Support | 584 (19.4%) |
| Informational Support | 633 (21.1%) |
| Tangible Support | 566 (18.8%) |
| Positive Social Interaction | 739 (24.6%) |
| Affectionate Support | 339 (11.3%) |