Figure 4. Rank of disease-specific trial frequency vs. disease-related mortality across eleven world regions.

Data is presented for 7 categories: LRTI, diarrheal diseases, HIV/AIDS, tuberculosis, malaria, hepatitis B, and hepatitis C. Panels are arrayed in descending order of global disease mortality from left to right and top to bottom. Trial rank was calculated by first identifying all trials for the specified disease and then ranking world regions based on the number of trials including that region. Death rank was calculated using the total number of deaths per region due to the specified disease. The diagonal line is provided for reference. Regions above the line rank higher in terms of number of trials compared to disease-specific mortality. Regions below the line rank lower in terms of number of trials compared to disease-specific mortality. Regions on or close to the line have similar trial and mortality ranks.