Table 1 Definitions of key terms used in this paper

Implementation

The process of putting to use or integrating evidence-based interventions within a setting [9].

Sustainability

To what extent an evidence-based intervention can deliver its intended benefits over an extended period of time after external support from the donor agency is terminated [9].

Sustainment

The continued use of an intervention within practice [10].

Voltage drop

The phenomenon in which interventions are expected to yield lower benefits as they move from efficacy to effectiveness and into real world use (adapted from [11]).

Program drift

The phenomenon whereby deviation from manualized protocols in real-world delivery of interventions is expected to yield decreasing benefit for patients (adapted from [12]).