Document Classification

Section Type: RESULTS

Text: The benefit of CRT-D for the prevention of first and subsequent HFEs was pronounced among patients with left bundle branch block (HR : 0. 38, 95 % CI : 0. 29 to 0. 49, p < 0. 001 ; and HR : 0. 50, 95 % CI : 0. 33 to 0. 76, p = 0. 001, respectively) and nonsignificant in non-left bundle branch block patients (HR : 1. 12, 95 % CI : 0. 77 to 1. 64, p = 0. 55 ; and HR : 0. 99, 95 % CI : 0. 58 to 1. 69, p = 0. 96, respectively ; p values for interaction : p < 0. 001 and p = 0. 06, respectively).