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Table 5 Cost-effectiveness results (after deterministic sensitivity analyses) comparing ERS with usual care

From: The cost-effectiveness of exercise referral schemes

Parameters/scenarios How data was adjusted for in the model Incremental cost per person Incremental effect per person (QALY) ICER
Base case analysis - £170 0.008 £20,876
Parameters
Intervention costs to participants Costs of intervention was varied from £222 to £342 (including costs to providers and participants) £290 0.008 £35,652
Less intensive ERS Costs of intervention was varied from £222 to £110 £58 0.008 £7,085
Effectiveness of ERS (based on lower limit of 95% CI) Probability of becoming active after exposure to ERS was varied from 0.336 to 0.294 £226 -0.001 Dominated*
Effectiveness of ERS (based upper limit of 95% CI) Probability of becoming active after exposure to ERS was varied from 0.336 to 0.371 £122 0.015 £7,947
Scenarios
Worst cases of cost and effectiveness Worst case cost (£342) and worst case effectiveness (0.294) £346 -0.001 Dominated*
Best cases of cost and effectiveness Best case cost (£110) and best case effectiveness (0.371) £10 0.015 £679
Worst case cost and best case effectiveness Best case cost (£110) and worst case effectiveness (0.294) £242 0.015 £15,734
Best case cost and worst case effectiveness Worst case cost (£342) and best case effectiveness (0.371) £114 -0.001 Dominated*
  1. *ERS more costly and less effective than control