| 
      Abbreviations: CABG; coronary artery bypass grafting
        | Variable | microbial sealant group    (n=159) n;% | control group    (n=132) n;%
 | p-value |  
        | Type of    surgery |  |  |  |  
        | CABG | 50 (31.4) | 35 (26.5) | 0.357 |  
        | Valve    procedure | 22 (13.8) | 38 (28.8) | 0.002 |  
        | Other single    procedures | 9 (5.7) | 5 (3.8) | 0.457 |  
        | CABG + valve    procedure | 41 (25.8) | 31 (23.5) | 0.651 |  
        | Other combined    procedures | 37 (23.3) | 23 (17.4) | 0.220 |  
        | Reoperation |  |  |  |  
        | CABG | 10 (7.5) | 15 (9.1) | 0.214 |  
        | Valve    procedure | 14 (10.7) | 9 (5.3) | 0.532 |  |