Use of buffered saline solution also tended to be associated with a lower 5-year risk for death , myocardial infarction , or subsequent revascularization compared with saline ( hazard ratio , 0.81 [ 95 % CI , 0.64-1 .02 ; P = .08 ] ) and blood ( 0.81 [ 0.63-1 .03 ; P = .09 ] ) solutions .