|   | 
        Cardiac event (+)
           (n=107cases) | 
        Cardiac event(-)
          (n=505cases) | 
        Range | 
        p-value | 
      
      
        | Age(y.o)  | 
        63.1±12.4 | 
        62.3±13.6 | 
        25~85 | 
        p=0.7609 | 
      
      
        | Sex(M/F)  | 
        76/31 | 
        387/118 | 
          | 
        p=0.2268 | 
      
      
        | NYHA functional class    (Ⅰ/Ⅱ/Ⅲ/Ⅳ) | 
        49/23/24/11 | 
        351/99/50/5 | 
          | 
        p<0.0001 | 
      
      
        | Hypertension | 
        38 (35.5%) | 
        179 (35.4%) | 
          | 
        p=0.9997 | 
      
      
        | Diabetes mellitus | 
        37 (34.5%) | 
        135 (26.7%) | 
          | 
        p=0.1091 | 
      
      
        | Dyslipidemia | 
        15( 14.0%) | 
        178 (35.2%) | 
          | 
        p<0.0001 | 
      
      
        | Atrial fibrillation | 
        22 (20.5%) | 
        148 (29.3%) | 
          | 
        p=0.570 | 
      
      
        | Ventricular    tachycardia Ventricular fibrillation | 
        35 (32.7%) | 
        123 (24.3%) | 
          | 
        p=0.826 | 
      
      
        | IHD | 
        48( 44.8%) | 
        224 (44.3%) | 
          | 
        p=0.9242 | 
      
      
        | p/o PCI | 
        20 (18.7%) | 
        122 (24.2%) | 
          | 
        p=0.2072 | 
      
      
        | p/o CABG | 
        15 (14.0%) | 
        66 (13.0%) | 
          | 
        p=0.8050 | 
      
      
        | HCM | 
        3 ( 2.7% ) | 
        13 ( 9.7% ) | 
          | 
        p=0.7051 | 
      
      
        | DCM | 
        55 (51..4%) | 
        240 (47.5%) | 
          | 
        p=0.7331 | 
      
      
        | Valvular heart disease | 
        1 (0.9%) | 
        28 (5.5%) | 
          | 
        p=0.0677 | 
      
      
        | BNP concentration    (pg/ml) | 
        543±608.3 | 
        309.4±419.3 | 
        30.2~4800 | 
        p=0.0002 | 
      
      
        | Hemoglobin level    (g/dl) | 
        11.8±1.7 | 
        13.3±1.8 | 
        7.9~17.5 | 
        p<0.0001 | 
      
      
        | Esimated GFR    (ml/min/1.73m2) | 
        46.5±18.3 | 
        56.6±21.5 | 
        20.2~129.3 | 
        p<0.0001 | 
      
      
        | Sodium (mmol/L) | 
        139.4±3.6 | 
        140.1±3.3 | 
        130~148 | 
        p=0.0683 |