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Bleed rate by reinforcement type (sleeve and gastric bypass)
| Buttress material | Number of study arms | Event rate (high to low) | Number of patients |
|---|---|---|---|
| None | 83 | 3.45 % | 17,808 |
| Oversuture | 58 | 2.69 % | 14,368 |
| Glycolide copolymer | 44 | 2.48 % | 2929 |
| Bovine pericardium | 30 | 1.23 % | 6759 |
Bovine pericardium versus none—p < 0.001; bovine pericardium versus glycolide copolymer—p < 0.01; bovine pericardium versus oversuture—p ≤ 0.05; glycolide copolymer versus none—p < 0.01
