Table 3 Characteristics of colorectal polyps treated with endoscopic mucosal resection in Group A (epinephrine–saline injection) and Group B (hypertonic saline injection)
| Â | Group A | Group B | P value |
|---|---|---|---|
Number of polyps (n) | 2.6 ± 1.9 | 2.9 ± 2.6 | 0.35 |
Size of polyps (mm) | 10.0 ± 5.8 | 10.0 ± 5.0 | 0.94 |
Location of polyps | Â | Â | 0.16 |
 Cecum | 2 (2.0%) | 4 (3.9%) |  |
 Accending | 25 (24.5%) | 27 (26.5%) |  |
 Transverse | 17 (16.6%) | 26 (25.5%) |  |
 Descending | 13 (12.8%) | 4 (3.9%) |  |
 Sigmoid | 35 (34.3%) | 34 (33.3%) |  |
 Rectum | 10 (9.8%) | 7 (6.9%) |  |
Macroscopic classification | Â | Â | 0.31 |
 0-Is | 33 (32.3%) | 37 (36.3%) |  |
 0-Ip | 20 (19.6%) | 19 (18.6%) |  |
 0-Isp | 33 (32.4%) | 21 (20.6%) |  |
 0-IIa | 7 (6.9%) | 14 (13.7%) |  |
 0-IIc | 2 (2.0%) | 4 (3.9%) |  |
 Laterally spreading tumor | 7 (6.9%) | 7 (6.9%) |  |
Histological classification | Â | Â | 0.49 |
 Adenoma | 80 (78.4%) | 80 (78.4%) |  |
 Adenocarcinoma | 18 (17.7%) | 14 (13.7%) |  |
 Hyperplastic polyp | 3 (2.9%) | 4 (3.9%) |  |
 Others | 1 (1.0%) | 4 (3.9%) |  |