Detached (n=11, 12.0%) Non-detached (n=81, 88.0%) P value*
Age (year, mean ±SD) 65.4 ± 9.0 61.1 ± 10.6 0.202
Sex (M:F) 8 (72.7%):3 (27.3%) 54 (66.7%):27 (33.3%) 0.687
Location     0.187
antrum 8 (72.7%) 36 (44.4%)  
angle 0 (0%) 19 (23.5%)  
lower body 2 (18.2%) 22 (27.2%)  
middle body 1 (9.1%) 4 (4.9%)  
No. of clips (mean ± SD) 3.1 ± 0.8 3.0 ± 1.1 0.632
Time-to-surgery (day, mean ± SD) 4.6 ± 4.6 3.0 ± 4.0 0.227
SD: standard deviation, M: male, F: female, No.: number *P < 0.05
Table 2: Clinical and endoscopic features of 11 patients who showed detachment of clips applied for determining the resection line before surgery