Fig 4. Scatter plot of the joint probability distribution for two different transmission rates and purchasing schemes.

A: Probability distribution of 1000 matched pairs (total costs and cases found) for two different transmission rates, 0.28 and 0.3. The mean incremental cost-effectiveness ratio (ICER) was 133,200€ (transmission rate 0.28) and 121,240€ (transmission rate 3) per case found. Four lines mark different “willingness-to-pay”-thresholds, from 50,000€ to 200,000€ per additional case found by screening. B: Probability distribution of 1000 matched pairs (total costs and cases found) for unit costs used by statutory insurance providers unit costs used by private providers, both at a transmission rate of 0.78. Four lines mark different “willingness to pay”-thresholds, from 50,000€ to 200,000€ per additional case found by screening. The mean resulting ICER was 201,509€ (private insurance unit costs) and 130,445€ (statutory insurance unit costs) per additional case found.).