Research evidence use in local government-led public health interventions: a systematic review

Background: Local governments play an important role in improving public health outcomes globally, critical to this work is applying the best-available research evidence. Despite considerable exploration of research use in knowledge translation literature, how research is practically applied by local governments remains poorly understood. This systematic review examined research evidence use in local government-led public health interventions. It focused on how research was used and the type of intervention being actioned. Methods: Quantitative and qualitative literature published between 2000 and 2020 was searched for studies that described research evidence use by local governments in public health interventions. Studies reporting interventions developed outside of local government, including knowledge translation interventions, were excluded. Studies were categorised by intervention type and their level of description of research evidence use (where ‘level 1’ was the highest and ‘level 3’ was the lowest level of detail). Findings: The search identified 5922 articles for screening. A final 34 studies across ten countries were included. Experiences of research use varied across different types of interventions. However, common themes emerged including the demand for localised research evidence, the legitimising role of research in framing public health issues, and the need for integration of different evidence sources. Conclusions: Differences in how research was used were observed across different local government public health interventions. Knowledge translation interventions aiming to increase research use in local government settings should consider known barriers and facilitators and consider contextual factors associated with different localities and interventions.