Distribution of clinical status of individuals who suffer sudden cardiac death. Abbreviations: AP, angina pectoris; MI, myocardial infarction; SCD, sudden cardiac death. Reprinted from Journal of the American College of Cardiology 54(9), Myerburg, R. J., Reddy, V. and Castellanos, A. Indications for implantable cardioverter-defibrillators based on evidence and judgment. 747–763. Copyright (2009), with permission from Elsevier and the American College of Cardiology.