Table 1.

Characteristics of included studies

Study	Intervention(n)	Diagnosis	Type of Anxiety	Age, Range (Mean)	TreatmentDuration	Treatment Sessions	Anxiety Scales	Primary Efficacy Outcomes	RSG	AC	BPP	BOA	IOD	SR	OB
Cartwright-Hatton 2011 [18]	parent only CBT(38) vs. WL(36)	ADIS-IV	PD&SAD &SPP&SOP	2.7–9(6.6±2)	10 w	10 Sessions	MASC-C	0.39 vs.-3.26	+	+	–	–	+	+	?
Cobham 2017 [13]	parent only CBT(33) vs. WL(30)	ADIS-IV	GAD&SAD&SPP&SOP	7–14(9.3±2)	6 w	6 Sessions	SCAS-C	−10.5.vs.2.8	+	?	–	–	+	+	+
Mendlowitz 1999 [27]	parent only CBT(21) vs. CBT + parent(18)	DSM-IV	Mixed anxiety disorders	7–12(9.8±x)	12w	12 Sessions	RCMAS-37	−4 vs. 0	?	?	–	–	+	+	+
Monga 2015 [28]	parent only CBT(32) vs. CBT + parent(45)	ADIS-IV	Mixed anxiety disorders	5–7(6.8±0.8)	11w	11 Sessions	SCARED-P	−5.73vs.-4.42	?	?	–	+	+	+	+
Özyurt 2016 [29]	CBT parent only(37) vs. WL(37)	K-SADS-PL	GAD&SAD&SPP&SOP	8–12(9.7±1.45)	8 w	8 Sessions	SCARED-C-41	−12.42 vs.-1.31	+	?	–	–	?	–	+
Waters 2009 [17]	parent only CBT(38) vs. CBT + parent(31)vs. WL(11)	ADIS-IV	GAD&SAD&SPP&SOP	4–8(6.8±1.19)	10w	10 Sessions	CSR	−4.27 vs.-3.68vs.-0.60	?	?	+	+	+	+	+

Abbreviations: AC allocation concealment, ADIS Anxiety Disorders Interview Schedule for DSM-4, BOA blinding of outcome assessment, BPP blinding of participants and personnel, CBT cognitive-behavioral therapy, CSR Clinician severity ratings, DSM Diagnostic and Statistical Manual of Mental Disorders, IOD incomplete outcome data, MASC Multidimensional Anxiety Scale for Children, OB other bias, RCMAS Revised Children’s Manifest Anxiety Scale, RSG random sequence generation, SADS Schedule for Affective Disorders and Schizophrenia, SCARED Screen for Anxiety and Related Disorders, SCAS Spence Children’s Anxiety Scale, SR selective reporting, WL waitlist

Symbol: -:high risk of bias, +:low risk of bias,?:unclear risk of bias, x:not stated