Table 1.
Characteristics of Patients Hospitalized with Acute Myocardial Infarction (AMI) Between 1990 and 1999 According to Gender and Age: Worcester Heart Attack Study
| Total Sample | Women | Men | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Characteristic | Women (N = 2,037) | Men (N = 2,645) | P Value | <55 Y (n = 139) | 55–64 Y (n = 218) | 65–74 Y (n = 521) | ≥75 Y (n = 1,159) | P Value | <55 Y (n = 544) | 55–64 Y (n = 564) | 65–74 Y (n = 707) | ≥75 Y (n = 830) | P Value |
| Mean age, y | 75 | 66 | <.001 | 46 | 60 | 71 | 83 | <.001 | 47 | 60 | 70 | 81 | <.001 |
| Medical history, % | |||||||||||||
| Angina | 26.7 | 26.3 | .74 | 18.0 | 23.9 | 26.7 | 28.4 | <.05 | 15.8 | 24.5 | 29.0 | 32.2 | <.001 |
| Diabetes | 32.4 | 26.9 | <.001 | 32.4 | 36.7 | 37.6 | 29.3 | <.01 | 15.8 | 27.3 | 33.1 | 28.6 | <.001 |
| Hypertension | 66.0 | 53.4 | <.001 | 41.7 | 57.3 | 67.8 | 69.8 | <.001 | 39.7 | 54.1 | 56.3 | 59.5 | <.001 |
| Stroke | 11.7 | 10.2 | .11 | 3.6 | 6.9 | 10.8 | 14.1 | <.001 | 1.7 | 6.6 | 12.6 | 16.4 | <.001 |
| Heart failure | 27.2 | 16.0 | <.001 | 5.8 | 12.4 | 22.8 | 34.5 | <.001 | 3.9 | 9.2 | 18.3 | 26.6 | <.001 |
| AMI characteristics, % | |||||||||||||
| Initial | 64.3 | 62.9 | .34 | 78.4 | 71.1 | 64.5 | 61.2 | <.001 | 77.2 | 65.6 | 55.3 | 58.3 | <.001 |
| Q wave | 34.9 | 40.7 | <.001 | 45.3 | 40.8 | 36.5 | 34.5 | <.001 | 53.3 | 43.3 | 39.6 | 31.7 | <.001 |
| Anterior | 39.3 | 36.0 | <.05 | 38.1 | 37.6 | 36.7 | 40.9 | .40 | 35.5 | 33.9 | 34.9 | 38.6 | .27 |
| Hospital complications, % | |||||||||||||
| Heart failure | 45.1 | 34.2 | <.001 | 23.0 | 29.8 | 39.9 | 53.0 | <.001 | 17.1 | 26.4 | 38.2 | 47.4 | <.001 |
| Cardiogenic shock | 7.8 | 6.3 | <.05 | 5.0 | 8.7 | 7.5 | 8.0 | .55 | 4.6 | 5.1 | 6.4 | 8.1 | <.05 |