Figure 9

The proportion of weeks with no malaria reports as a function of population size of the Peruvian provinces classified in coastal, mountain, and jungle areas. The proportion of weeks with no malaria reports was negatively correlated with population size in jungle areas for both P. falciparum (Spearman ρ = -0.59, P = 0.001) and P. vivax (Spearman ρ = -0.59, P = 0.001) and in mountain regions for P. vivax only (Spearman ρ = -0.34, P = 0.003) during 1999–2006.