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Table 5 Definition, frameworks and commonly measured constructs in systematic reviews on scalability of healthcare interventions (n = 11)

From: Implementability of healthcare interventions: an overview of reviews and development of a conceptual framework

Frameworks (used in N = 4 reviews)

N (%)

• WHO/ExpandNet. Scaling-up framework

Scaling up consists of five elements: the innovation, resource team, user organisation, broader environment and the scaling strategy

1 (25)

• Milat et al., (2020) [82]. Intervention scalability assessment tool (ISAT)

Assessment of scalability includes five domains: the problem, the intervention, strategic/political context, evidence of effectiveness, intervention costs and benefits, fidelity and adaptation, reach and acceptability, delivery setting and workforce, implementation infrastructure and sustainability.

1 (25)

• Bradley et al., (2012) [83]. The AIDED model

Scalability consists of five interrelated components: the landscape, innovation to fit user receptivity, support, engagement of user groups and effort for spreading innovation.

1 (25)

• Greenhalgh et al., (2017) [84]. NASSS Framework

1 (25)

Commonly measured components

• Adaptation

2 (18)

• Resources

4 (36)

• Partnerships/collaborations

1 (9)

• Organisation/community/sociocultural factors

5 (45)

• Cost-benefit/economic feasibility

2 (18)