| Cases (n) | 
        Midazolam | 
        Propofol | 
        P-value | 
       
      
        | 27 | 
        30 | 
        - | 
       
      
        | Age (years) | 
        65.6 ± 14.8 | 
        66.4 ± 11.8 | 
        0.713 | 
       
      
        | Male : Female (n) | 
        14:13 | 
        21:09 | 
        0.16 | 
       
      
        | Body height (cm) | 
        159.9 ± 8.1 | 
        163.3 ± 9.6 | 
        0.137 | 
       
      
        | Body weight (kg) | 
        55.2 ± 9.3 | 
        60.7 ± 14.1 | 
        0.143 | 
       
      
        | Alcohol consumption>50 g/day (n) | 
        5 | 
        10 | 
        0.205 | 
       
      
        | Smoker (n) | 
        11 | 
        15 | 
        0.483 | 
       
      
        | Benzodiazepine user (n) | 
        7 | 
        6 | 
        0.594 | 
       
      
        | Disease | 
        - | 
        - | 
        - | 
       
      
        | Pancreatic disease (n) | 
        13 | 
        16 | 
        0.696 | 
       
      
        | Biliary disease (n) | 
        14 | 
        14 | 
        0.696 | 
       
      |