A head to head comparison of oral vs intravenous omeprazole for patients with bleeding peptic ulcers with a clean base, flat spots and adherent clots

Table 3 Probable effects of variables on re-bleeding

Factor	Re-bleeding (n)	P	OR (95% CI)
Co-existing illness	5	0.288	2.3 (0.6-8.8)
Hematemesis	6	0.971	0.8 (0.2-3.6)
Smoking	5	0.490	1.9 (0.4-7.3)
Aspirin/NSAIDs	7	0.721	1.1 (0.3-8.7)
Age ≥ 65 yr	5	0.117	2.1 (0.7-10.8)
Ulcer size > 1 cm	6	0.001	11 (2.6-46.3)
Ulcer locations:
Posterior duodenal	4	0.041	7 (1.5-18.2)
Gastric corporal	3	0.049	5 (1.0-14.3)
Ulcer stigmata:
Flat spots	5	0.001	12 (4.5-57.3)
Old clots	3	0.023	5 (1.2-13.5)