Study design
The study area was divided into 60 clusters that were randomly assigned to the three arms of the cRCT using restricted randomization. Study nets are identical in appearance and participating households are blinded to the type of ITN they received. Field data collectors are also blinded to the allocation of households to the study arms. Ten clusters from each study arm have been randomly selected for the durability assessment (Fig. Map of study area of cluster randomized controlled trial showing ITN durability assessment clusters. Ten clusters were randomly selected from each study armFlow chart of trial activities and outputs for monitoring the physical and insecticidal durability of Interceptor G2, Royal Guard and Interceptor in Benin. Two cohorts of nets will be followed per study arm; cohort 1 nets will be assessed for ITN attrition and fabric integrity while cohort 2 nets will be withdrawn (and replaced) and assessed for bioefficacy and chemical content