Table 2.
Questions and answers regarding diagnosis of colonic diverticular bleeding in 37 hospitals n (%)
| No. | Question | Answer (n = 37) | High volume (n = 18) | Low volume (n = 19) | P value | East Japan (n = 21) | West Japan (n = 16) | P value |
| 10 | What do you use as the first-line diagnostic method for hematochezia and suspected CDB? | |||||||
| Non-contrast-enhanced CT | 3 (8.1) | 0 | 3 (100) | 0 | 3 (100) | |||
| Contrast-enhanced CT | 22 (59.5) | 11 (50.0) | 11 (50.0) | 12 (54.6) | 10 (45.4) | |||
| Colonoscopy | 10 (27.0) | 6 (60.0) | 4 (40.0) | 7 (70.0) | 3 (30.0) | |||
| Contrast-enhanced CT and colonoscopy | 2 (5.4) | 1 (50.0) | 1 (50.0) | 0.359 | 2 (100) | 0 | 0.101 | |
| 11 | Can you perform urgent contrast-enhanced CT within 3 h after patient arrival at hospital?2 | |||||||
| Yes | 22 (61.1) | 12 (54.6) | 10 (45.4) | 13 (59.1) | 9 (40.9) | |||
| No | 14 (38.9) | 6 (42.9) | 8 (57.1) | 0.494 | 7 (50.0) | 7 (50.0) | 0.593 | |
| 12 | Can you perform early colonoscopy within 24 h after patient arrival at hospital? | |||||||
| Yes | 16 (43.2) | 9 (56.3) | 7 (43.7) | 10 (62.5) | 6 (37.5) | |||
| No | 21 (56.8) | 9 (42.9) | 12 (57.1) | 0.419 | 11 (52.4) | 10 (47.6) | 0.538 | |
| 13 | Do you request bowel preparation? | |||||||
| Yes | 17 (46.0) | 6 (35.3) | 11 (64.7) | 13 (76.5) | 4 (23.5) | |||
| No | 3 (8.1) | 3 (100) | 0 | 2 (66.7) | 1 (33.3) | |||
| Case by case | 17 (45.9) | 9 (52.9) | 8 (47.1) | 0.105 | 6 (35.3) | 11 (64.7) | 0.046 | |
| 14 | Do you use a cap-assisted colonoscopy for early colonoscopy? | |||||||
| Yes | 24 (64.9) | 11 (45.8) | 13 (54.2) | 15 (62.5) | 9 (37.5) | |||
| No | 13 (35.1) | 7 (53.9) | 6 (46.1) | 0.642 | 6 (46.2) | 7 (53.8) | 0.338 | |
| 15 | How do you perform colonoscopy to improve identification of SRH?1 | |||||||
| Cap-assisted colonoscopy | 17 (46.0) | 10 (58.8) | 7 (41.2) | 0.254 | 10 (58.8) | 7 (41.2) | 0.815 | |
| Long cap-assisted colonoscopy | 13 (35.1) | 6 (46.2) | 7 (53.8) | 0.823 | 7 (53.9) | 6 (46.1) | 0.793 | |
| Inverting diverticulum via suction of colonoscopy | 18 (48.7) | 11 (61.1) | 7 (38.9) | 0.140 | 11 (61.1) | 7 (38.9) | 0.603 | |
| Wash out with water | 36 (97.3) | 18 (50.0) | 18 (50.0) | 1.000 | 21 (58.3) | 15 (41.7) | 0.432 | |
| Colonoscopy by multiple doctors | 3 (8.1) | 1 (33.3) | 2 (66.7) | 1.000 | 2 (66.7) | 1 (33.3) | 1.000 | |
| Colonoscopy under X-ray | 3 (8.1) | 1 (33.3) | 2 (66.7) | 1.000 | 1 (33.3) | 2 (66.7) | 0.568 | |
| 16 | Do you examine the small bowel when you are unable to diagnose definite CDB by colonoscopy? | |||||||
| Yes | 18 (48.7) | 11 (61.1) | 7 (38.9) | 10 (55.6) | 8 (44.4) | |||
| No | 7 (18.9) | 1 (14.3) | 6 (85.7) | 4 (57.1) | 3 (42.9) | |||
| Case by case | 12 (32.4) | 6 (50.0) | 6 (50.0) | 0.145 | 7 (58.3) | 5 (41.7) | 1.000 | |
| 17 | Which modality do you select for the small bowel examination?2 | |||||||
| Capsule endoscopy | 29 (85.3) | 17 (58.6) | 12 (41.4) | 18 (62.1) | 11 (37.9) | |||
| Balloon-endoscopy | 2 (5.9) | 0 | 2 (100) | 1 (50.0) | 1 (50.0) | |||
| Case by case | 3 (8.8) | 1 (33.3) | 2 (66.7) | 0.301 | 1 (33.3) | 2 (66.7) | 0.776 | |
1
Duplicated data allowed;
2
Missing data included. Parenthesis shows percentage. CT: Computed tomography; CDB: Colonic diverticular bleeding; SRH: Stigmata of recent hemorrhage.