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Table 1 Comparison of general information between UMER and ESD group

From: Underwater endoscopic mucosal resection for rectal neuroendocrine tumors (with videos): a single center retrospective study

Groups UEMR (n = 22) ESD (n = 56) χ2/t P
Gender (n), Male/Female 14/8 30/26 0.651 0.420
Age(years), X ± S 46.4 ± 9.3 47.2 ± 8.7 − 0.352 0.726
Tumor diameter (mm), X ± S 7.2 ± 1.6 6.8 ± 1.7 − 0.883 0.380
Distance from the anal margin (cm), X ± S 7.7 ± 1.6 7.3 ± 1.7 0.963 0.339
Depth of tumor invasion (n), mucosa/submucosa 8/14 14/42 1.007 0.316