Over a median @ years of follow-up , patients with both troponins above the median had significantly higher risk for stroke/systemic embolism -LSB- hazard ratio ( HR ) @ ( @ % CI @-@ @ ) -RSB- , cardiac death -LSB- @ ( @-@ @ ) -RSB- , and myocardial infarction -LSB- @ ( @-@ @ ) -RSB- than those with both troponins below median ( all P < @ ) .