Scatterplot of malaria endemicity and the level of bed net coverage in the 23 countries included in the study. Left: Scatterplot of malaria endemicity and the level of bed net coverage in the first level administrative divisions of the countries included in the study. The colours and shapes of the markers correspond to those of the countries in the right panel. The red and the green arrow indicate the relevant dimension for the protection of a population: division in the left top corner of the plot are well protected. These are characterized by low levels of endemicity and high levels of bed net coverage. Conversely, divisions in the lower right hand corner are badly protected as the level of bed net coverage is low while experiencing high levels of malaria endemicity. The ABC statistic assigns populations a value between 0 and 1 along this axis. Right: idem, for countries. Country names have been abbreviated as needed.