*A weakly dominated strategy indicates a higher incremental C/E ratio than that of a more effective alternative strategy—that is, i.e. the incremental C/E ratio of the European strategy vs the baseline-US is higher than the incremental C/E ratio of the alternative-US strategy vs the European strategy (with low HCV transmission risk).

†A strongly dominated strategy indicates a higher cost than that of a more effective alternative strategy—that is, the French strategy is associated with a higher cost and a lower utility compared with the alternative-US strategy (with low HCV transmission risk), and the French and baseline-US strategies are associated with higher costs and lower utilities compared with the European strategy (with high HCV transmission risk).

C/E, cost-effectiveness; HCV, hepatitis C virus; HCW, healthcare worker; QALY, quality-adjusted life year.