Proportion of participants withdrawn from methylphenidate for unknown reasons
Study
Akhondzadeh 2003	4/14
Akhondzadeh 2004	2/22
Altin 2013	30/204
Amiri 2008	3/30
Ardic 2014	21/122
Balázs 2011	3/37
Barbaresi 2006	84/379
Bereket 2005	58/72
Chou 2012b	34/296
Dirksen 2002	13/310
Dittmann 2014	52/247
El‐Zein 2005	6/18
Findling 2009	109/326
Findling 2010	54/162
Gadow 1995	7/34
Galland 2010	2/30
Gau 2008	13/137
Germinario 2013	161/351
Guerreiro 1996	2/24
Haertling 2015	16/262
Hammerness 2009	97/152
Hong 2012	5/112
Jensen 1999 (MTA)	29/144
Kim 2011	5/102
Kim 2014b	12/75
Kim 2015a	49/86
Klein 2004	9/129
Lee 2009	6/144
Lee 2012	22/93
Li 2011	2/36
McCracken 2016	6/69
Mohammadi 2004	5/16
Mohammadi 2012a	8/32
Mohammadi 2012b	3/23
Peyre 2012a	37/173
Poulton 2003	6/19
Remschmidt 2005	26/89
Shang 2015	11/80
Sobanski 2013	29/381
Steele 2006	4/73
Tasdelen 2015	2/22
Walitza 2009	15/26
Wang 2007	7/166
Wang 2011	17/50
Warshaw 2010	28/305
Weber 2003	8/57
Weiss 2007	3/90
Wigal 2013	3/45
Wilens 2005	140/407
Wilens 2006	36/171
Witt 2008	9/34
Yalcin 2014	2/40
Yang 2012	12/130
Zarinara 2010	1/19
Zheng 2011	202/1447
Zheng 2015	25/153
Çetin 2015	7/73