Table 2.
Results for the two groups
| Conventional clip (n = 12) | Over-the-scope clip (n = 7) | P value1 | |
| Lesion diameter (mm), mean ± SD | 12.5 ± 1.60 | 13.3 ± 1.74 | 0.140 |
| Resection diameter (mm), mean ± SD | 18.8 ± 1.30 | 22.9 ± 1.21 | 0.039 |
| Delayed bleeding (POD 1-7) | 3 | 0 | 0.049 |
| Treatment measure for delayed bleeding | hemostatic forceps | - | - |
| Delayed perforation (POD 1-7) | 0 | 0 | - |
| Procedure time of ulcer closure (min), mean ± SD | 33.26 ± 12.57 | 9.71 ± 2.92 | 0.0001 |
| Clips, mean | 9.8 | 1.25 | 0.015 |
| Total clips | 121 | 10 | 0.002 |
| Cost of one clip (¥/$/€)2 | 975/9.56/7.01 | 80000/785/576 | 0.008 |
| Cost of all clips (¥/$/€)2 | 117975/1257/847 | 800000/7850/5760 | 0.005 |
| Pathological diagnosis | |||
| Adenoma | 7 | 4 | 0.410 |
| Tubular adenocarcinoma | 4 | 2 | 0.390 |
| Leiomyoma | 1 | 0 | 0.810 |
| Carcinoid | 0 | 1 | 0.810 |
1
Mann-Whitney U test;
2
Average exchange rate at September, 2014.