Assessment of methodological quality

Two independent reviewers will critically appraise all of the eligible studies for methodological quality using the JBI critical appraisal instruments for randomized controlled trials and quasi-experimental studies.^27,29 Authors will be contacted for missing information or additional data, where required. Any disagreements that arise will be resolved through discussion or with a third reviewer. The results of the critical appraisal will be reported in narrative format and in a table. All studies, regardless of evaluations of their methodological quality, will undergo data extraction and synthesis, where possible. The quality of the studies will be considered in the interpretation of results.