Figure 1.

Event rate of the primary composite outcome in the ICD and CRT-D arms and its components: first occurrence of HF hospitalization with or without subsequent all-cause death, all-cause death without previous HF hospitalization, and <15% reduction in LVESV assessed at 12-month visit by echocardiography in patients without previous HF hospitalization according to the baseline rhythm. AF, atrial fibrillation or flutter; CRT-D, cardiac resynchronization therapy with defibrillator; HF, heart failure; ICD, implantable cardioverter defibrillator; LVESV, left ventricular end-systolic volume; SR, sinus rhythm.