Elevated discharge HR was associated significantly with all-cause mortality : when compared to a reference of < 60 beats per minute ( bpm ) , the adjusted hazard ratios were ( 95 % CI ) 4.5 ( 1.5-13 .5 , p = 0.006 ) for 60-69 bpm , 3.8 ( 1.2-11 .9 , p = 0.022 ) for 70-79 bpm , 4.3 ( 1.2-15 .6 , p = 0.025 ) for 80-89 bpm , and 16.9 ( 5.2-55 .0 , p < 0.001 ) for > 90 bpm .
