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Time from symptom onset to presentation affects the extent of myocardial damage and potential treatment options for patients with ST-segment–elevation myocardial infarction (STEMI). Investigators used data from a national registry to study temporal trends and risk factors for delays in presentation. Nearly 500,000 patients with STEMI were included in the analysis; 67% were men, and 86% were white.
Mean times from symptom onset to hospital presentation decreased from 123 minutes in 1995 to 113 minutes in 2004. White men had the shortest times to presentation. Female sex, older age, black race, Latino ethnicity, presence of diabetes, and lack of commercial insurance all predicted longer times to presentation. For example, older black women (ag…