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| Methods | RCT (Randomised Controlled Trial) | |
| Participants | Patients undergoing elective abdominal aortic aneurysm repair | |
| Interventions | Midline incision or supra umbilical transverse incision | |
| Outcomes | Incisional hernia rate | |
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment (selection bias) | Unclear risk | B ‐ Unclear |
