Study	Reason for exclusion
Wolraich 1978	Ineligible intervention
Rosén 1984	Ineligible intervention
Horn 1990	Ineligible comparator
Kolko 1990	Ineligible patient population
Klein 1997	Ineligible intervention
Miranda 2002	Ineligible intervention
Kolko 1999	Ineligible intervention
Gonzalez 2002	Ineligible intervention
Feinfield 2004	Ineligible patient population
Döpfner 2004	Ineligible intervention
Corkum 2005	Parent training programme only
Gol 2005	Ineligible comparator
Langberg 2008	Ineligible intervention
Molina 2008	Ineligible comparator
Grasmann 2011	Ineligible patient population
Dodge 2011	Ineligible patient population
Lessard 2011	Ineligible patient population
Pumpuang 2012	Ineligible intervention
Power 2012a	Ineligible intervention
Cionek Szpak 2012	Ineligible intervention
Jans 2012	Ineligible intervention
ICBM 2012 Meeting	Ineligible intervention
Malti 2012	Ineligible patient population
Langberg 2012	Ineligible intervention
Ostberg 2012	Ineligible intervention
ESCAP 2013	Ineligible intervention
Abikoff 2013	Ineligible intervention
Lim‐Ashworth 2013a	Ineligible patient population
Cipolla 2013	Ineligible patient population
Sibley 2013	Ineligible intervention
Sibley 2013a	Ineligible intervention
Vidal 2015	Adult population
Jans 2015	Ineligible intervention
Sibley 2016	Ineligible intervention
Bussing 2016	Ineligible patient population
Leung 2017	Ineligible patient population
NCT02574273	Ineligible comparator
Pfiffner 2018	Ineligible comparator
NCT03176108	Ineligible intervention