1. Excluded studies.

First author	Date	Reason for exclusion
Albane	2019	Wrong population
Aly	2017	Wrong population
Demazure	2018	Not a systematic review/systematic review protocol
Esala	2018	Not a systematic review/systematic review protocol
Hassan	2019	Wrong population
Ho	2018	No interventions
Koesters	2018	Not a systematic review/systematic review protocol
Liem	2019	Wrong population
Logan	2018	Wrong population
Murray	2010	Not a systematic review/systematic review protocol
Nicholl	2004	Not a systematic review/systematic review protocol
Purgato	2019	Wrong population
Quosh	2013	Not a systematic review/systematic review protocol
Sijbrandij	2018	Not a systematic review/systematic review protocol
Slobodin	2015	Wrong population
Slobodin	2015a	Not a systematic review/systematic review protocol
Sullivan	2016	Wrong population
Wood	2018	Not a systematic review/systematic review protocol