Table 1 Baseline characteristics of the 304 rectal neuroendocrine tumors before propensity score matching.
Total (n = 304) | m-EMR (n = 178) | ESD (n = 126) | P value | |
|---|---|---|---|---|
Patient characteristics | ||||
Age, median (range), years | 61 (20–84) | 60 (20–83) | 63 (25–84) | 0.401 |
Sex | 0.624 | |||
Male | 193 | 113 | 83 | |
Female | 105 | 65 | 41 | |
Lesion characteristics | ||||
Lesion size, median (range), mm | 5 (1–13) | 5 (1–11) | 5 (2–13) | < 0.001* |
Location of lesions | 0.641 | |||
Rs or Ra | 51 (16.8%) | 28 (15.7%) | 23 (18.3%) | |
Rb | 253 (83.2%) | 150 (84.3%) | 103 (81.7%) | |
WHO grade | 0.097 | |||
G1 | 217 (71.4%) | 133 (74.7%) | 84 (66.7%) | |
G2 | 21 (6.9%) | 17 (9.6%) | 4 (3.2%) | |
Depth of invasion | 1.000 | |||
Mucosa | 0 (0%) | 0 (0%) | 0 (0%) | |
Submucosa | 304 (100%) | 178 (100%) | 126 (100%) | |
Procedure-related characteristics | ||||
Operator level | 0.047* | |||
Experts | 204 (67.1%) | 111 (62.4%) | 93 (73.8%) | |
Trainees | 100 (32.9%) | 67 (37.6%) | 33 (26.2%) | |
