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Table 1 No significant differences were found with respect to age, gender, location of lesion, diameter of resected lesion, or procedure time

From: Effectiveness of CO2-insufflated endoscopic submucosal dissection with the duodenal balloon occlusion method for early esophageal or gastric cancer: a randomized case control prospective study

  Duodenal balloon group
n = 21
Regular group
n = 22
P value
Age(years) (mean ± SD) 50 ~ 79 (69.0 ± 9.8) 40 ~ 85 (71.6 ± 12.7) NS**
Gender (M/F) 17/4 16/6 NS*
Location of lesion (Eso/U/M/L) 4/8/4/5 2/8/5/7 NS**
Size of resected specimen (mm) 17 ~ 80 (36.1 ± 19.3) 17 ~ 70 (38.8 ± 17.9) NS**
Procedure time (min) 105 ~ 180 (145.6 ± 26.6) 30 ~ 270 (127.0 ± 67.3) NS***
  1. *Fisher’s exact t-test,**Unpaired t-test,***Mann–Whitney U-test.