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Table 2 Outcomes of UEMR and ESD in treatment of rectal NETs

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
Endoscopic complete resection rate, n(%) 22(100) 56(100) / /
Histological complete resection rate, n(%) 21(95.5) 54(96.4) 0.041 0.840
Delayed hemorrhage, n(%) 0(0) 1(1.8) 0.398 0.528
Perforation, n(%) 0(0) 0(0) / /
Postoperative abdominal pain, n(%) 1(4.5) 14(25.0) 4.255 0.039
Postoperative abdominal distention, n(%) 0(0) 11(19.6) 5.031 0.025
Postoperative anal discomfort, n(%) 1(4.5) 3(5.4) 0.021 0.884
Operation time (min) 5.0 ± 1.4 26.6 ± 8.1 − 12.379  < 0.001
Hospitalization time (d) 4.5 ± 1.1 7.1 ± 1.3 − 8.475  < 0.001
Operation cost (USD) 328.6 ± 20.6 1759.0 ± 72.6 − 134.193  < 0.001