Study	Reason for exclusion
Adachi 2006	Children not analysed separately
Agertoft 2010	Treatment < 4 weeks
Bateman 2008	Children not analysed separately
Berger 2009	Placebo controlled
BY9010/M1‐207	Children not analysed separately
Cohen 2011	Placebo controlled
Dahl 2010	Children not analysed separately
Derom 2009	Included patients > 18 years of age
Dusser 2007	Included patients > 18 years of age
Erin 2008	Included patients > 18 years of age
Gelfand 2006	Placebo controlled
Hoshino 2010	Included patients > 18 years of age
Knox 2007	Children not analysed separately
Kosztyla‐Hojna 2007	Included patients > 18 years of age
Malozowski 2008	Not a randomised controlled trial
Matsunaga 2009	Treatment < 4 weeks
Meltzer 2009	Placebo controlled
Molen 2010	Children not analysed separately
Pedersen 2010	Placebo controlled
Postma 2011	Children not analysed separately
Skoner 2006	Placebo controlled
Stoica 2010	Children not analysed separately
van den Berge 2009	Included patients > 18 years of age