Figure 7. Estimated probability of mortality by hemoglobin concentration overall (A) and by Plasmodium species (B).

Figures generated by multiple fractional polynomial regression analyses with the following covariables: Plasmodium species, hemoglobin, age, sex, ethnic group, and year. Bands represent 95% CIs. Risk of death in Figure 6A = 1/(1+exp(−(−1.44−0.4146 * hb+0.0006 * hb³))), where the other covariates in the model are set equal to their mean value (for continuous variables) or prevalence (for indicator variables).