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Table 5 Subgroup analysis between endoscopic position during submucosal dissection and lesion location

From: Internal traction method using a spring-and-loop with clip (S–O clip) allows countertraction in gastric endoscopic submucosal dissection

  SLC-ESD
n = 51
C-ESD
n = 51
P value
Lesion location    
 Upper n = 11 n = 9 0.014
Forward endoscopic position 54.5 (6) 0 (0)
Retroflexed endoscopic position 45.5 (5) 100 (9)
 Middle n = 20 n = 20 0.09
Forward endoscopic position 30 (6) 5 (1)
Retroflexed endoscopic position 70 (14) 95 (19)
 Lower n = 20 n = 22 0.333
Forward endoscopic position 85.0 (17) 95.5 (21)
Retroflexed endoscopic position 15.0 (3) 4.5 (1)
  1. Values are % (n) unless otherwise indicated
  2. SLC-ESD spring-and-loop with clip-assisted endoscopic submucosal dissection, C-ESD conventional endoscopic submucosal dissection, SD standard deviation, IQR interquartile range
  3. P < 0.05