Figure 4.

Representativeness of school children for malaria surveillance in Africa. (a) enrollment and (b) completion rates by country. Countries shaded grey indicate an absence of malaria transmission: Algeria, Egypt, Lesotho, Libya, Morocco, Tunisia and Western Sahara. Net enrollment ratio is the ratio of children of official school age who are enrolled in school to the population of the corresponding official school age. Primary completion rate is the percentage of students completing the last year of primary school. It is calculated by taking the total number of students in the last grade of primary school, minus the number of repeaters in that grade, divided by the total number of children of official graduation age. Data source: World Development Indicators [60]. (c) Geographical distribution of malaria survey data (n = 5307) currently included in the Malaria Atlas Project http://www.map.ox.ac.uk webcite[63].