Key messages
- None of the studies included in this summary were conducted in a low-income country, only two were conducted in middle-income countries, and the rest were from highincome countries.
- The studies yield moderate quality evidence that use of the dissemination strategies (either individually or in combination) leads to improvements in guideline implementation and patient outcomes.
- Resources available for maintaining and improving quality of care need to be considered when assessing whether the intervention effects are likely to be transferable to other settings in high- and middle-income countries. Rigorous studies from low-income countries are needed to fully assess applicability in all healthcare settings.