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

Table 1 Comparison of general information between UMER and ESD group

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

ISSN: 1471-230X