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Counts of hospital admissions for MI in total and by age group, sex, secondary diagnoses, and previous admissions among residents of 21 U.S. cities.
| Variable | No. of events (%) |
|---|---|
| MI | 302,453 |
| Age (years) | |
| 65–75 | 145,983 (48) |
| > 75 | 156,470 (52) |
| Sex | |
| Male | 147,246 (49) |
| Female | 155,207 (51) |
| Secondary diagnosis | |
| Pneumonia | 13,588 (4) |
| Previous admissions | |
| COPD | 32,455 (11) |
| Atrial fibrillation | 28,912 (10) |
| Diabetes | 49,732 (16) |
