BackgroundOver 200 million people worldwide live with groin hernia and 20 million are operated on each year. In resource-scarce settings, the superior surgical technique using a synthetic mesh is not affordable. A low-cost alternative is needed. The objective of this study was to calculate and compare costs and cost-effectiveness of inguinal hernia mesh repair using a low-cost versus a commercial mesh in a rural setting in Uganda. MethodsThis is a cost-effectiveness analysis of a double-blinded RCT comparing outcomes from groin hernia mesh repair using a low-cost mesh and a commercially available mesh. Cost-effectiveness was expressed in US dollars (with euros in parentheses, exchange rate 30 December 2016) per disability-adjusted life-year (DALY) averted and quality-adjusted life-year (QALY) gained. ResultsThe cost difference resulting from the choice of mesh was $1247 (Euro1181). In the low-cost mesh group, the cost per DALY averted and QALY gained were $168 (Euro159) and $76 (Euro72) respectively. The corresponding costs were $582 (Euro551) and $333 (Euro315) in the commercial mesh group. A sensitivity analysis was undertaken including cost variations and different health outcome scenarios. The maximum costs per DALY averted and QALY gained were $1484 (Euro1405) and $847 (Euro802) respectively. ConclusionRepair using both meshes was highly cost-effective in the study setting. A potential cost reduction of over $120 (nearly Euro120) per operation with use of the low-cost mesh is important if the mesh technique is to be made available to the many millions of patients in countries with limited resources. Trial registration number: ISRCTN20596933 (). Mosquito mesh is cost-efficient