Table 1. Characteristics of Patients with ST-segment Elevation Myocardial Infarction by Year Groups: The ARIC Study - Community Surveillance, 1987-2008.
| Year Group | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | 1987- 1988 (n 420)* |
1989- 1990 (n 474)* |
1991- 1992 (n 548)* |
1993- 1994 (n 630)* |
1995- 1996 (n 599)* |
1997- 1998 (n 516)* |
1999- 2000 (n 437)* |
2001- 2002 (n 290)* |
2003- 2004 (n 240)* |
2005- 2006 (n 334)* |
2007- 2008 (n 357)* |
Annual % change (95% CI) |
| Age (years) | 58.8 | 58.0 | 57.8 | 58.4 | 58.4 | 57.9 | 58.6 | 57.6 | 58.1 | 58.7 | 56.8 | -0.1 (-0.2, 0.1) |
| Women | 30.3% | 30.3% | 31.4% | 29.3% | 32.2% | 30.5% | 33.7% | 30.0% | 35.5% | 26.6% | 36.9% | 0.5 (-0.5, 1.5) |
| Black | 11.8% | 12.0% | 14.2% | 20.8% | 21.7% | 27.4% | 23.6% | 21.5% | 25.1% | 25.5% | 36.3% | 4.6 (3.3, 5.9) |
| Age > 65 years | 27.8% | 25.7% | 30.4% | 30.6% | 32.0% | 28.2% | 33.2% | 27.4% | 30.3% | 25.2% | 19.8% | -0.7 (-1.8, 0.3) |
| History of Hypertension | 48.7% | 50.7% | 48.1% | 53.9% | 51.1% | 56.7% | 58.7% | 53.4% | 59.0% | 54.2% | 62.3% | 1.1 (0.4, 1.7) |
| Diabetes Mellitus† | NA | NA | NA | 21.9% | 25.8% | 26.8% | 23.7% | 24.0% | 25.5% | 26.6% | 26.3% | 0.8 (-1.1, 2.6) |
| PCI within 24hrs† | NA | NA | NA | 15.6% | 20.8% | 23.3% | 31.3% | 52.7% | 63.2% | 59.8% | 53.9% | 9.9 (7.7, 12.1) |
| CABG within 24hrs† | NA | NA | NA | 2.3% | 4.1% | 2.0% | 2.0% | 0.8% | 0.9% | 0.0% | 0.7% | -14.0 (-20.6, -7.3) |
| Thrombolytic therapy | 39.2% | 52.7% | 60.0% | 54.0% | 41.4% | 39.0% | 32.6% | 29.4% | 8.5% | 1.7% | 2.4% | -8.7 (-9.4, -8.0) |
Abbreviations: STEMI, ST-elevation myocardial infarction. ARIC, Atherosclerosis Risk in Communities. CI, confidence interval. PCI, percutaneous intervention. CABG, coronary artery bypass graft
Characteristics presented by mean or percentage
*
Weighted number of incident, unadjusted hospitalized STEMI per year group
†
Data on diabetes, PCI or CABG were unavailable prior to 1993.