Fig. 2

Example of indicators calculated using vector and human behaviour data from Asembo, western Kenya in 2011 [52]. Series A shows the behaviour-adjusted estimates of exposure to Anopheles arabiensis bites for an unprotected individual. Series B shows behaviour-adjusted estimates of exposure to vector bites for an ITN user. ITNs were assumed to prevent approximately 94% of bites while in use based on reference estimates from experimental hut trials. The percentage of all vector bites prevented by using an ITN \(\left( {P_{S}^{*} } \right)\) = 79% and the proportion of remaining exposure occurring indoors for a protected user of an ITN \(\left( {\pi_{I,p} } \right)\) = 87%. Series C shows the population-wide mean exposure to vector bites. In this site the proportion of the population that reported using an ITN while asleep the previous night was 74% (arrows). Therefore, the population-wide mean personal protection against biting exposure given the reported community-level coverage of people using an ITN \(\left( {P_{S,C}^{*} } \right)\) is 58%. An Excel file demonstrating how these indicators were calculated is included as Additional file 1