|   | 
        TRI group | 
        TFI group | 
      
      
        | Time from onset to reperfusion (h) | 
          | 
          | 
      
      
        |   | 
        6.5±2.4 | 
        6.4±3.5 | 
      
      
        | Access site crossover | 
        15(4.41) | 
        4(1.24)* | 
      
      
        Number of narrowed coronary arteries 
          0 [n (%)] 
          1 [n (%)] 
          2 [n (%)] 
          3 [n (%)] | 
         
          2(0.58) 
              173(50.88) 
              98(28.82) 
          67(19.7) | 
         
          1(0.31) 
              161(50.15) 
              100(31.15) 
          59(18.38) | 
      
      
        Pre-PCI TIMI flow 
          0 [n (%)] 
          1 [n (%)] 
          2 [n (%)] 
          3 [n (%)] 
          Post-PCI TIMI flow 
          0 [n (%)] 
          1 [n (%)] 
          2 [n (%)] 
          3 [n (%)] | 
         
          284(83.52) 
              27(7.94) 
              18(5.29) 
              11(3.23) 
               
            2(0.58) 
            7(2.05) 
            23(6.76) 
          308(90.58) | 
         
                    277(86.29) 
            19(5.91) 
            15(4.67) 
            10(3.11)
             
           
            2(0.69) 
            5(1.55) 
            20(6.23) 
          294(91.58) | 
      
      
        IRA 
          LM[n (%)] 
          LAD[n (%)] 
          LCX[n (%)] 
          RCA[n (%)] | 
         
          7(2.05) 
              178(52.35) 
              44(12.94) 
          113(33.23) | 
         
          11(3.42) 
              171(53.27) 
              37(11.52) 
          106(33.02) | 
      
      
        | GP IIb/IIIa    antagonist [n (%)] | 
        254(74.7) | 
        237(73.83) | 
      
      
        | Contrast dose(ml) | 
        110±29 | 
        105±38 | 
      
      
        Devices used in PCI 
          Thrombus aspirator [n (%)] 
          IABP[n (%)] 
          Temporary    pacemaker[n (%)] 
          Stent [n (%)] 
          DES [n (%)] | 
         
          259(76.17 
              12(3.52) 
              22(6.47) 
              330(97.05) 
          309(90.88) | 
         
          232(72.17) 
              17(5.29) 
              19(5.91) 
              316(98.44) 
          299(93.14) | 
      
      
        | Underwent secondary PCI of non-IRA[n (%)] | 
        56(16.47) | 
        48(14.95) | 
      
    
      Values are presented as mean ± standard deviation or n (%).