Original study
Time of onset of chest pain in acute myocardial infarction

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Abstract

We studied the time of onset of chest pain in 1099 patients admitted to a coronary care unit with myocardial infarction using a statistical model. Statistical analysis demonstrated an excess of infarcts with time of onset of chest pain at 0700 hours (14%) and at midnight (11%), with the remaining infarct population (75%) forming a background distribution over the 24 hr.

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