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Table 6 Estimated mortality (%) three, six, nine and twelve months after spraying for wild mosquitoes collected in insecticide treated huts

From: Long-lasting control of Anopheles arabiensis by a single spray application of micro-encapsulated pirimiphos-methyl (Actellic® 300 CS)

   % Mortality (95% CI)
Insecticide Substrate 3 months 6 months 9 months 12 months
P-methyl EC Mud 86.6 80.5 72.5 62.8
   (83.9 to 89.4) (77.8 to 83.3) (67.9 to 77.2) (54.4 to 71.2)
P-methyl CS B Concrete 81.0 76.8 71.8 66.3
   (77.7 to 84.4) (73.7 to 79.8) (67.1 to 76.6) (58.3 to 74.3)
  Mud 89.6 85.3 79.4 72.0
   (87.3 to 92.0) (82.9 to 87.6) (75.4 to 83.4) (64.5 to 79.6)
P-methyl CS BM Concrete 82.5 79.8 76.9 73.8
   (79.3 to 85.6) (77.1 to 82.6) (72.9 to 81.0) (67.0 to 80.5)
  Mud 83.9 79.8 75.0 69.5
   (80.9 to 86.9) (77.1 to 82.6) (70.6 to 79.4) (62.0 to 77.0)
  1. Estimates are adjusted for sleeper and account for similarities among mosquitoes entering huts on the same day and potential behavioural clustering.