Study	Reason for exclusion
Afifi 2005	Non‐randomised study
Ambore 2017	Non‐randomised study: Study participants are selected randomly, but not randomly allocated
Ammar 2010	Intervention/control: mesh repair compared to suture repair. No comparisons of different mesh fixation methods
Korenkov 2002	Intervention: use of different fixation is linked to use of different implants
Navarra 2007	Intervention/control: laparoscopic versus open repair
Pawlak 2015	Comparison: use of different mesh materials and fixation methods at the same time
Polat 2005	Intervention/control: comparison of different intra‐abdominal mesh positions
Stabilini 2013	Intervention/control: laparoscopic bridging (mesh repair) compared to open anatomical reconstruction (no mesh)
Venclauskas 2010	Intervention/control: comparison of different intra‐abdominal mesh positions
Wéber 2010	Intervention/control: comparison of different intra‐abdominal mesh positions and mesh compared to suture (2 factorial design)