title: Circadian variation in the frequency of onset of chest pain in acute myocardial infarction.
abstract: The time of onset of chest pain was studied prospectively in 1154 consecutive patients admitted to a coronary care unit with myocardial infarction during a five year period. Statistical analysis confirmed a previous finding in a retrospective study of a bimodal frequency distribution with peaks in the time of onset of chest pain between 2330 and 0030 hours and between 0630 and 0830 hours.
authors.affiliation: Coronary Care Unit, Leicester General Hospital.
authors.forename: D R
authors.initials: DR
authors.lastname: Thompson
authors.forename: T W
authors.initials: TW
authors.lastname: Sutton
authors.forename: N I
authors.initials: NI
authors.lastname: Jowett
authors.forename: J E
authors.initials: JE
authors.lastname: Pohl
mesh_terms: D000787:Angina Pectoris / Q000209:etiology; D002637:Chest Pain / Q000209:etiology*; D002940:Circadian Rhythm / Q000502:physiology*; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology*; D011446:Prospective Studies; D013997:Time Factors