Table 1.
Characteristics of Young Patients with Initial Acute Myocardial Infarction Overall and According to Time Period of Hospitalization
| Characteristic† |
Total Population (n=1,703)
|
Time Period
|
||
|---|---|---|---|---|
| 1975/1978 (n=259)
|
1990/1991 (n=195)
|
2005 (n=102)
|
||
| Age (mean, yrs) | 46.7 (6.0) | 47.0 (5.9) | 45.4 (6.5) | 47.8 (5.3) |
| Age (years) | ||||
| <40 | 12.1 % | 10.8 % | 17.4 % | 7.8 % |
| 40–44 | 18.9 % | 15.8 % | 21.0 % | 17.7 % |
| 45–50 | 29.9 % | 31.3 % | 31.8 % | 27.5 % |
| 50–54 | 39.1 % | 42.1 % | 29.7 % | 47.1 % |
| Men | 79.2 % | 78.4 % | 81.5 %) | 70.6 % |
| White | 88.7 % | 90.4 % | 86.2 % | 89.2 % |
| Medical History | ||||
| Angina pectoris | 10.3 % | 12.4 % | 10.3 % | 6.9 % |
| Diabetes mellitus | 14.7 % | 14.7 % | 9.2 % | 13.7 % |
| Hypertension | 38.1 % | 34.0 % | 38.5 % | 47.1 % |
| Stroke | 1.8 % | 1.5 % | 1.0 % | 0 % |
| Heart failure | 1.6 % | 1.5 % | 0.5 % | 4.9 % |
| Current smoker** | 51.1 % | - | - | 48.0 % |
| Total Cholesterol (mg/dL) | 219.2 (56.0) | 242.4 (56.3) | 222.9 (45.4) | 193.0 (55.9) |
| Prehospital delay (median, hrs)* | 1.8 | - | 1.7 | 1.5 |
| Length of stay (mean, days) | 8.8 (7.6) | 17.3 (8.3) | 8.7 (5.9) | 4.0 (4.7) |
| Q wave AMI | 60.7 % | 75.3 % | 66.7 % | 32.4 % |
| In-Hospital Therapies | ||||
| ACE/ARBs**** | 44.6 % | - | 14.9 % | 69.6 % |
| Aspirin | 69.8 % | 20.1 % | 88.7 % | 98.0 % |
| Beta Blockers | 73.6 % | 23.6 % | 86.7 % | 96.1 % |
| Calcium channel blockers** | 27.9 % | - | 44.6 % | 9.8 % |
| Lipid lowering agents* | 37.4 % | - | 9.7 % | 64.7 % |
| Thrombolytics* | 32.2 % | - | 42.6 % | 2.9 % |
| Cardiac Catheterization | 48.7 % | 4.6 % | 39.5 % | 92.2 % |
| PCI** | 37.3 % | - | 11.3 % | 78.4 % |
| Coronary artery bypass Graft surgery | 3.2 % | 0 % | 2.1 % | 2.9 % |
†
mean values (SD)
*
1986–2005 only
**
1995–2005 only
****
1990–2005 only