We conducted a post hoc analysis of HF-related MACE ( HF hospitalization , successfully resuscitated cardiac death , or cardiac death ) and events were significantly reduced in the 150 million MPC group ( 0/15 ) versus control ( 5/15 ; 33 % ) , 25 million MPC group ( 3/15 ; 20 % ) , and 75 million MPC group ( 6/15 ; 40 % ) ; the 150 million MPC group differed significantly from all groups according to Kaplan-Meier statistics > 3 years ( P = 0.025 for 150 million MPC group versus control ) .