Table 2.
Odds ratio of bleeding after endoscopic mucosal resection
| Crude-OR | Multiple-adjusted OR1 (95% CI) | Multiple-adjusted OR2 (95% CI) | ||||
| n | Cases | % | (95%CI) | |||
| Age (each additional year of age) | 297 | 57 | 19.2 | 1.01 (0.98-1.05) | 1.00 (0.97-1.04) | 1.01 (0.97-1.04) |
| Tumor factors | ||||||
| Location of gastric lesions | ||||||
| Antrum group | 158 | 23 | 14.6 | 1 | 1 | 1 |
| Corpus group | 139 | 34 | 24.5 | 2.24 (1.20-4.18) | 2.24 (1.20-4.18) | 1.69 (0.88-3.26) |
| Tumor diameter | ||||||
| Quartile 1 (4-7) | 58 | 5 | 8.6 | 1 | 1 | 1 |
| Quartile 2 (8-11) | 89 | 18 | 20.2 | 3.15 (1.06-9.38) | 3.15 (1.06-9.38) | 3.01 (0.99-9.07) |
| Quartile 3 (12-15) | 76 | 13 | 17.1 | 2.53 (0.81-7.87) | 2.53 (0.81-7.87) | 2.90 (0.91-9.20) |
| Quartile 4 (16-50) | 74 | 21 | 28.4 | 5.35 (1.78-16.10) | 5.35 (1.78-16.10) | 5.63 (1.84-17.23) |
| P for trend | 0.048 | 0.022 | 0.022 | |||
| Endoscopic pattern of lesion | ||||||
| Elevated type | 253 | 42 | 16.6 | 1 | 1 | 1 |
| Depressed type | 44 | 15 | 34.1 | 2.60 (1.28-5.26) | 3.95 (1.69-9.24) | 4.21 (1.75-10.10) |
| Histological type | ||||||
| Adenoma | 139 | 24 | 17.3 | 1 | 1 | 1 |
| Cancer | 158 | 33 | 20.9 | 1.27 (0.71-2.27) | 0.67 (0.33-1.35) | 0.56 (0.27-1.16) |
| Cutting method | ||||||
| Strip biopsy | 177 | 17 | 9.6 | 1 | 1 | |
| Endoscopic aspiration mucosectomy | 120 | 40 | 33.3 | 3.18 (1.75-5.80) | 3.07(1.59-5.92) |
1
Adjusted for age, tumor factors, location of gastric lesions, tumor diameter, endoscopic pattern of lesion, histological type. AT indicates antrum of stomach;
2
Adjusted for age, tumor factors, location of gastric lesions, tumor diameter, endoscopic pattern of lesion, histological type, and cutting method.