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