|   | 
        Group A (≤ 1    day, n=56) | 
        Group B (>1    day, n=36) | 
         
      
        | Age (years, mean ±SD) | 
        61.8 ± 10.4 | 
        61.3 ± 10.7 | 
         
      
        | Sex (M:F) | 
        43 (76.8%):13 (23.2%) | 
        19 (52.8%):17(47.2%) | 
         
      
        | Location | 
          | 
          | 
         
      
        | antrum | 
        31 (55.4%) | 
        13 (36.1%) | 
         
      
        | angle | 
        11 (19.6%) | 
        8 (22.2%) | 
         
      
        | lowerbody | 
        11 (19.6%) | 
        13 (36.1%) | 
         
      
        | middlebody | 
        3 (5.4%) | 
        2 (5.6%) | 
         
      
        | No. of clips (mean ± SD) | 
        3.1 ± 0.8 | 
        3.1 ± 1.0  | 
         
      
        | Loss of clips (No. of patients) | 
        5 (8.9%) | 
        6 (16.7%) | 
         
      
        | SD: standarddeviation, M: male, F: female, No.: number * P <    0.05 | 
         
      |