Table 1

Baseline characteristics of 2153 consecutive patients with acute myocardial infarction (MI) admitted over a three month period to 20 adjacent hospitals. The population was dichotomised to indicate patients who would be included (⩽ 74 years) or excluded (> 74 years) from the 30 day mortality performance indicator outlined by the UK national service framework

Baseline characteristics Total population (n=2153) ⩽74 years (n=1220; 56.7%) >74 years (n=933; 43.3%)
Female (%)39.428.653.6
Hypertensive (%)29.129.329.0
Diabetic (%)13.012.313.8
Current smokers (%)33.643.318.8
Total 30 day mortality (%)24.414.037.9
Anterior acute MI (%)35.829.940.2
Received thrombolysis (%)42.550.731.0