Costs-effectiveness results (DSA)
| Sensitivity analysis | DSA 1 (inclusion of room hire) | DSA 2 (interest rate change to 1.5%) | DSA 3 (ideal costs of GTA teaching) | DSA 4 (reduce GTA cost to £20 per hour) | DSA 5 (GTA training cost included) |
| Additional cost of GTA compared with manikin | 7075.10 | 7686.88 | 8317.39 | 5485.39 | 9168.71 |
| Cost difference per student in RCT arm (n=204) | 34.68 | 37.68 | 40.77 | 26.89 | 44.94 |
| ICER 50% competence | 589.59 | 640.57 | 693.12 | 457.12 | 764.06 |
| ICER 60% competence | 252.68 | 274.53 | 297.05 | 195.91 | 327.45 |
| ICER 70% competence | 252.68 | 274.53 | 297.05 | 195.91 | 327.45 |
DSA, deterministic sensitivity analysis; GTA, Gynaecology Teaching Associate; ICER, incrementalcost-effectivenessratio; RCT, randomised controlled trial.