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Table 2 Defining sustainment

From: Evidence-based intervention sustainability strategies: a systematic review

Definition Number of studies
After a defined period of time, the program, clinical intervention, and/or implementation strategies continue to be delivered n = 17
Individual behavior change (provider and patient level) is maintained continuing to produce benefits for individuals or systems n = 4
No definition of sustainment provided n = 2
Retention of interventionists and clinic staff (staff retention as a marker of sustainment) n = 1
Maintenance of core treatment elements (by providers) following the end of the implementation support period n = 1
Services are maintained after the termination of major financial, managerial, and technical assistance from an external donor n = 1