Importance of implementation level when evaluating the effect of the Hi Five Intervention on infectious illness and illness-related absenteeism

摘要

Background: There is limited research on the importance of implementation when evaluating the effect of hand hygiene interventions in school settings in developed countries. The aim of this study was to examine the association between an implementation index and the effect of the intervention. The Hi Five Intervention was evaluated in a 3-armed cluster randomized controlled trial involving 43 randomly selected Danish schools.