Table 1.
Comparison of clinical characteristics, laboratory characteristics, GRACE Score and mortality between very elderly versus not very elderly
| Age ≥ 80 | Age < 80 | p-value | |
|---|---|---|---|
| Sample size | 173 (17%) | 821 (83%) | - |
| Age (years) | 85 ± 3.7 | 61 ± 11 | < 0.001‡ |
| Male | 82 (47.0%) | 487 (59.0%) | 0.004§ |
| Non-ST elevation ACS | 23 (13.0%) | 205 (25.0%) | 0.001§ |
| Diabetes | 60 (35.0%) | 300 (37.0%) | 0.613§ |
| Non-ST elevation | 55 (32.0%) | 308 (37.5%) | 0.155§ |
| Positive troponin | 123 (71.0%) | 557 (68.0%) | 0.403§ |
| Classification of Killip | < 0.001 | ||
| Killip I | 127 (73.0%) | 724 (88.0%) | |
| Killip II | 21 (12.0%) | 49 (6.0%) | |
| Killip III | 23 (13.0%) | 41 (5.0%) | |
| Killip IV | 2 (1.2%) | 7 (0.9%) | |
| Systolic pressure (mmHg) | 151 ± 32 | 155 ± 30 | 0.098‡ |
| Heart rate | 80 ± 17 | 80 ± 18 | 0.519‡ |
| Serum Creatinine (mg/dl) | 1.1 ± 0.5 | 1.1 ± 0.9 | 0.669‡ |
| Hemoglobin at admission | 13 ± 1.8 | 14 ± 1.9 | < 0.001‡ |
| Triarterial or LMD* | 38 (30.0%) | 126 (18.0%) | < 0.001§ |
| Percutaneous Coronary Intervention† | 66 (39.0%) | 368 (45.0%) | 0.129§ |
| Revascularization surgery† | 4 (2.0%) | 92 (11.0%) | < 0.001§ |
| GRACE Score | 162 ± 34 | 115 ± 35 | < 0.001‡ |
| In-hospital death | 28 (16.0%) | 30 (4.0%) | < 0.001§ |
ACS: acute coronary syndrome;
*
Coronariography performed during hospitalization; LMD: left main disease;
†
Myocardial revascularization treatments during hospitalization;
‡
Compared through Student's t-test;
§
Compared through χ2 test.