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About 75% of patients with acute myocardial infarction are older than 70 years, but patients in this age group are commonly treated less vigorously than younger patients. This differential treatment may partly reflect clinicians' misconceptions about the outlook of such patients, and the importance of age in clinical decisions. We examined how age does and should affect the management of patients and risk stratification in acute myocardial infarction.

In this prospective cohort study, we recruited 1225 consecutive patients admitted with acute myocardial infarction to a district general hospital in east London. The primary endpoint was death. We used tabulation and regression methods to analyse the association between age group and clinical variables.

Patients aged 70 years or older took a longer time to arrive in hospital and were less likely to receive thrombolysis or discharge β-blockers …