Transanal minimally invasive surgery vs endoscopic mucosal resection for rectal benign tumors and rectal carcinoids: A retrospective analysis

Table 1 Characteristics of the patients and tumors

Characteristics	TAMIS, n = 44	EMR, n = 53	P value
Age, yr	64.25 ± 10.85	60.70 ± 10.38	0.104
Gender, n (%)			0.383
Male	21 (47.7)	30 (56.6)
Female	23 (52.3)	23 (44.4)
BMI, kg/m2	22.88 ± 2.46	22.43 ± 1.98	0.322
Tumor size, cm	1.47 ± 0.96	1.14 ± 0.53	0.033
Benign	1.46 ± 1.02	1.06 ± 0.50	0.024
Carcinoid	1.52 ± 0.72	1.64 ± 0.45	0.702
Distance from the anal verge, cm	7.39 ± 1.86	8.83 ± 2.95	0.006
Final pathology, n (%)1			0.220
Benign	34 (77.3)	46 (86.8)
Carcinoid	10 (22.7)	7 (13.2)

¹Benign tumors refer to rectal adenomas and rectal polyps. BMI: Body mass index; EMR: Endoscopic mucosal resection; TAMIS: Transanal minimally invasive surgery.