Pathways for scaling up public health interventions
- Publisher:
- BioMed Central
- Publication Type:
- Journal Article
- Citation:
- BMC Public Health, 2018, 18, (1), pp. 1-11
- Issue Date:
- 2018
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Background: To achieve population-wide health improvement, public health interventions found effective in
selected samples need to be ‘scaled up’ and implemented more widely. The pathways through which interventions
are scaled up are not well characterised. The aim of this paper is to identify examples of public health interventions
which have been scaled up and to develop a conceptual framework which quantifies and describes this process.
Methods: A multi-stage international literature search was undertaken to identify examples of public health
interventions in high income countries that have been scaled up or implemented at scale. Initial abstract review
identified articles which met all the criteria of being a: 1) public health intervention; 2) chronic disease prevention
focus; 3) program delivered at a wide geographical scale (state, national or international). Interventions were
reviewed and coded into a conceptual framework pathway to document their scaling up process. For each
program, an in-depth review of the identified articles was undertaken along with a broad internet based search to
determine the outcomes of the dissemination process. A conceptual framework of scaling up pathways was
developed that involved four stages (development, efficacy testing, real world trial and dissemination) to which the
40 programs were mapped.
Results: The search identified 40 public health interventions that showed evidence of being scaled up. Four
pathways were identified to capture the different scaling up trajectories taken which included: ‘Type I – Comprehensive’
(55%) which passed through all four stages, ‘Type II – Efficacy omitters’ (5%) which did not conduct efficacy testing, ‘Type
III – Trial omitters’ (25%) which did not conduct a real world trial, and ‘Type IV – At scale dissemination’ (15%) which
skipped both efficacy testing and a real world trial.
Conclusions: This is the first study to classify and quantify the potential pathways through which public health
interventions in high income countries are scaled up to reach the broader population. Mapping these pathways not only
demonstrates the different trajectories that occur in scaling up public health interventions, but also allows the variation
across scaling up pathways to be classified. The policy and practice determinants leading to each pathway remain for
future study, especially to identify the conditions under which efficacy and replication stages are missing.
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