Fig. 7: County-level number needed to treat (NNT) and cost ratio heatmap.
From: Evidence-driven spatiotemporal COVID-19 hospitalization prediction with Ising dynamics

a Predicted number needed to treat (NNT) heatmap by HOIST, colored by \({{{{{\rm{NN}}}}}}{{{{{{\rm{T}}}}}}}_{h}\). Red locations indicate that only a few vaccine shots can help reduce a hospitalization case. b Race-adjusted number needed to treat (NNT) heatmap by HOIST, colored by \({{{{{\rm{NN}}}}}}{{{{{{\rm{T}}}}}}}_{a}\). The spatial pattern is similar to the unadjusted map, but some locations are affected by the race percentage. c Heatmap of cost ratio between hospitalization costs and vaccination costs. Red locations indicate that they can save healthcare costs by giving more vaccinations (i.e., cost ratio >1). Source data are provided as a Source Data file.