|Shock Therapy Group||Patients (n)||Percent|
|One or more inappropriate shock episodes||83||11.5|
|1 inappropriate shock episode||51||7.1|
|2–4 inappropriate shock episodes||23||3.2|
|≥5 inappropriate shock episodes||9||1.3|
|Both inappropriate and appropriate shock episodes||27||3.8|
|Inappropriate but not appropriate shock episode(s)||56||7.8|
|No inappropriate shock episodes||636||88.5|
|Appropriate shock episode(s)||101||14.1|
|No appropriate shock episodes||535||74.4|
Shock episodes consisted of an ICD detection during which 1 or more shocks occurred; episodes caused by the same type of arrhythmia beginning within 5 min of another episode were not counted or reanalyzed.
ICD = implantable cardioverter-defibrillator.