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Table 1 Variables potentially related to entomological outcomes, derived from responses to the household questionnaire in the six surveys

From: Beyond efficacy in water containers: Temephos and household entomological indices in six studies between 2005 and 2013 in Managua, Nicaragua

Variable Variable included in the questionnaire
2005 2006 2007 2011 2012 2013
Choice of manual search for larvae or spending C$5 per week on temephos Included & retained      
Assumed knowledge of life cycle of mosquito through recognizing a larva when shown Included & retained Included & retained   Included & retained Included & retained  
Perception of a lack of temephos (yes/no) Included but not retained      
Perception that the community itself can control the mosquito (ye/no) Included & retained   Included & retained Included but not retained   Included & retained
Ability to identify community leadership (can/cannot identify) Included but not retained   Included but not retained    
Perception of danger from dengue in the community (yes/no)   Included & retained     
Perception of danger from dengue in the household (yes/no)   Included but not retained     
Discussion of dengue prevention with neighbours (yes/no)   Included & retained Included & retained    Included & retained
Education of the head of the family (primary or less/above primary)      Included & retained  
Regularity of local water supply (regular/irregular)       Included & retained
Participation in local organisations (yes/no)       Included but not retained
Participation in a local dengue prevention activity (yes/no)       Included but not retained
  1. “Included & retained” means the variable was included in the initial saturated GLMM model and retained in the final model.
  2. “Included but not retained” means the variable was included in the initial saturated GLMM model but was not retained in the final model of variables all associated with the outcome at the 5% significance level.