Fig. 2

Cost-effectiveness of Hib vaccine introduction in the national immunization program by province. The map indicates provinces where Hib vaccine in the national immunization program is cost-effective compared to the status quo when the ICER (US$/QALY gained) is less than the provincial GDP per capita and the Woods et al. threshold for China (US$ 4469). For Gansu province, the GDP per capita (US$ 4313) is less than the Woods et al. threshold, and including Hib vaccine in the national immunization program is cost-effective at both thresholds