title: Time of onset of chest pain in acute myocardial infarction.
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.
mesh_terms: D002940:Circadian Rhythm; D006801:Humans; D008954:Models, Biological; D009203:Myocardial Infarction / Q000503:physiopathology*; D010146:Pain; D013909:Thorax; D013997:Time Factors