title: Circadian variation in the frequency of onset of chest pain in elderly patients with acute myocardial infarction.
abstract: This study reports the time of onset of chest pain in 792 consecutive elderly patients admitted to a coronary care unit with myocardial infarction during a 10-year period. Statistical analysis demonstrated a bimodal frequency distribution with peaks in the time of onset of chest pain between 23 h 30 and 00 h 30 and between 06 h 30 and 08 h 30.
authors.affiliation: Coronary Care Unit, Leicester General Hospital.
authors.forename: D R
authors.initials: DR
authors.lastname: Thompson
authors.forename: J E
authors.initials: JE
authors.lastname: Pohl
authors.forename: T W
authors.initials: TW
authors.lastname: Sutton
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D002940:Circadian Rhythm; D003430:Cross-Sectional Studies; D004739:England / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D009203:Myocardial Infarction / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D012307:Risk Factors