|   | 
        Recipient
          group | 
        Control
          group | 
        p | 
      
      
        |   | 
        n=5 | 
        n=20 | 
          | 
      
      
        | Gender (male/female) | 
        2/3 | 
        9/11 | 
        >0.99 | 
      
      
        | Gestational age (weeks) | 
        29.5±1.9 | 
        30.1±2.0 | 
        0.52 | 
      
      
        | Birth weight (g) | 
        1274±164 | 
        1272±161 | 
        0.89 | 
      
      
        | 1 minute Apgar | 
        6.2±1.3 | 
        6.8±1.5 | 
        0.46 | 
      
      
        | 5 minute Apgar | 
        8.2±0.8 | 
        8.5±0.9 | 
        0.59 | 
      
      
        | Outborn Patients | 
        0(0) | 
        2(10) | 
        >0.99 | 
      
      
        | Cesarean section | 
        5(100) | 
        16(80) | 
        0.55 | 
      
      
        | Mechanical ventilation | 
        5(100) | 
        17(85) | 
        0.27 | 
      
      
        | Times of ventilation# (hours) | 
        16.6±17.1 | 
        2.7±3.2 | 
        0.002** | 
      
      
        | Days of oxygen treatment$ (days) | 
        48.6±31.7 | 
        30.4±22.6 | 
        0.25 | 
      
      
        | Surfactant | 
        5(100) | 
        17(85) | 
        0.27 | 
      
      
        | Catecholamines | 
        5(100) | 
        19(95) | 
        >0.99 | 
      
      
        | Dopamine | 
        5(100) | 
        19(95) | 
        >0.99 | 
      
      
        | Dopamine maximum dose(μg/kg/min) | 
        6.3±2.4 | 
        2.5±1.3 | 
        0.002** | 
      
      
        | Dobutamine | 
        4(80) | 
        4(20) | 
        0.024* | 
      
      
        | Dobutamine maximum dose(μg/kg/min) | 
        7.6±4.3 | 
        0.9±1.9 | 
        0.002** | 
      
      
        | Albumin | 
        5(100) | 
        9(45) | 
        0.046* | 
      
      
        | (Laboratory findings) | 
          | 
          | 
          | 
      
      
        | Arterial pH | 
        7.24±0.07 | 
        7.26±0.04 | 
        0.54 | 
      
      
        | Arterial base deficit (mmol/l) | 
        5.0±2.0 | 
        5.1±2.6 | 
        0.97 | 
      
      
        | Arterial base deficit (mmol/l) | 
        5.0±2.0 | 
        5.1±2.6 | 
        0.97 | 
      
      
        | First hemoglobin (g/dl) | 
        15.7±2.5 | 
        15.9±2.5 | 
        0.92 | 
      
      
        | First IgM (mg/dl) | 
        2.8±6.3 | 
        4.7±6.0 | 
        0.37 | 
      
      
        | First IgM (mg/dl) | 
        2.8±6.3 | 
        4.7±6.0 | 
        0.37 | 
      
      
        | First CRP (mg/dl) | 
        0.0±0.0 | 
        0.2±0.7 | 
        0.37 | 
      
      
        | First WBC (x109/l) | 
        12.7±4.0 | 
        11.3±6.7 | 
        0.25 | 
      
      
        | First CPK (IU/l) | 
        236±129 | 
        191±153 | 
        0.31 | 
      
    
      **p<0.01, ***p<0.001