Thompson D R, Blandford R L, Sutton T W, Marchant P R
Int J Cardiol. 1985 Feb;7(2):139-48. doi: 10.1016/0167-5273(85)90354-7.
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.