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Fig. 1 | BMC Medicine

Fig. 1

From: Extending the elderly- and risk-group programme of vaccination against seasonal influenza in England and Wales: a cost-effectiveness study

Fig. 1

Incremental analysis with costs and quality-adjusted life years (QALYs) gained. Estimated change in costs and QALYs gained over the elderly- and risk-group strategy, for each of the extensions to the vaccination programme. Note that the comparison in each case is with the elderly- and risk-group strategy. Each contour line represents 90 % of the Monte Carlo simulations with the coloured point inside being the mean outcome of the scenario. The two diagonal lines represent £20,000 (solid) and £30,000 per QALY gained. Unfilled circles indicate strategies which are dominated by others. The arrows indicate the pathway of increasing costs for the incremental analysis

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