Table 2 Bleeding characteristics of the study subjects
Variables | Conventional therapy (n = 112) | UI-EWD therapy (n = 55) | P-value |
|---|---|---|---|
Location of bleeding, n (%) | |||
Cecum | 5 (4.5) | 2 (3.6) | 0.625 |
Ascending colon | 18 (16.1) | 5 (9.1) | 0.219 |
Hepatic flexure | 0 (0.0) | 4 (7.3) | 0.011+ |
Transverse colon | 12 (10.7) | 4 (7.3) | 0.478 |
Descending colon | 5 (4.5) | 1 (1.8) | 0.388 |
Sigmoid colon | 13 (11.6) | 10 (18.2) | 0.247 |
Rectum | 59 (52.7) | 29 (52.7) | 0.830 |
Cause of bleeding, n (%) | |||
Diverticular bleeding | 13 (11.6) | 4 (7.3) | 0.204 |
Radiation proctitis | 13 (11.6) | 1 (1.8) | 0.037+ |
Angiodysplasia | 9 (8.0) | 1 (1.8) | 0.168+ |
Ulcer bleeding | 34 (30.4) | 18 (32.7) | 0.756 |
Post procedure bleeding | 31 (27.7) | 25 (45.5) | 0.147+ |
Tumor bleeding | 12 (10.7) | 6 (10.9) | 0.970 |
Size of bleeding site, n (%) | |||
< 1 cm | 71 (63.4) | 15 (27.3) | < 0.001 |
1–4 cm | 32 (28.6) | 26 (47.3) | 0.022 |
> 4 cm | 9 (8.0) | 14 (25.5) | 0.002 |
Forrest classification, n (%) | |||
Ia | 2 (1.8) | 5 (9.1) | 0.040+ |
Ib | 112 (94.6) | 50 (90.1) | 0.001+ |
Treatment modality, n (%) | |||
Coagrasper | 38 (33.0) | 22 (40.0) | 0.397 |
APC | 21 (18.8) | 5 (9.1) | 0.106 |
Hemoclipping | 81 (53.6) | 21 (38.2) | < 0.001 |
EVL | 4 (3.6) | 0 (0.0) | 0.156 |
UI-EWD only | 0 (0.0) | 17 (30.9) | |