A total of 711 patients ( 17.0 % ) receiving LCZ696 and 835 patients ( 19.8 % ) receiving enalapril died ( hazard ratio for death from any cause , 0.84 ; 95 % CI , 0.76 to 0.93 ; P < 0.001 ) ; of these patients , 558 ( 13.3 % ) and 693 ( 16.5 % ) , respectively , died from cardiovascular causes ( hazard ratio , 0.80 ; 95 % CI , 0.71 to 0.89 ; P < 0.001 ) .