The HF clinic intervention did not reduce time to a 90 day break in treatment with either an ACE inhibitor/ARB [ hazard ratio ( HR ) 0.82 , 95 % confidence interval ( CI ) 0.34-1 .97 , P = 0.650 ] , a BB ( HR 1.09 , 95 % CI 0.53-2 .66 , P = 0.820 ) , or an MRA ( HR 1.30 , 95 % CI 0.85-2 .00 , P = 0.238 ) .