Table 1 Comparative demographic and admission profile in 1994 and 2003
Demographic | 1994 (N = 950 suspected AMI) | 2003 | ||
|---|---|---|---|---|
Suspected AMI (N = 935) | Suspected Other ACS (N = 430) | Combined (N = 1365) | ||
Mean age (years) (mean) (std dev) | - | 66 (13) | 61*** (14) | 64 (13) |
Men | 64 (12) | 64 (13) | 60*** (13) | 63 (13) |
Women | 69 (11) | 71 (13) | 64*** (14) | 69 (13) |
Referral source (%) | ||||
Primary care physician | 69 | 53 | 55 | 53 |
Self | 24 | 39 | 33 | 38 |
Other | 7 | 8 | 12 | 9 |
Admission mode to hospital (%) | ||||
Ambulance | 46 | 48 | 38** | 45 |
Car (passenger) | 42 | 42 | 43 | 42 |
Car (driver) | 8 | 6 | 12*** | 8 |
Other | 4 | 4 | 7 | 5 |
Distance from hospital at symptom onset | ||||
Median (range) miles | 9 (0–165) | 9 (0–80) | 8 (0–150) | 8 (0–150) |
Previous CHD history (%) | ||||
AMI | 24 | 16 | 31*** | 21 |
Unstable angina | 14 | 14 | 28*** | 19 |
Coronary artery bypass graft | 4 | 5 | 13*** | 7 |
Percutaneous coronary intervention | 2 | 6 | 18*** | 10 |