RESULTS	The coronary artery patency rate at 90 min was similar for all three regimens , averaging 73 % ( 95 % confidence interval [ CI ] 64 % to 80 % ) ; Thrombolysis in Myocardial Infarction ( TIMI ) grade 3 flow rates averaged 52 % ( 95 % CI 42 % to 61 % ) .\