Table 1. Characteristics of Studies Included in the Meta-analysis.

Disorder/Study	Target Disorder	CBT type	Placebo Type	Sample Size (CBT plus Placebo)	Number of Sessions	Anxiety Measures	Depression Measures	Analyses	Jadad Score
Bryant et al., 1998 22	ASD	CBT	Supportive Counseling	24	5	IES	BDI	Completer	1
Bryant et al., 1999 25	ASD	CBT	Supportive Counseling	38	6	IES	BDI	Completer	2
Bryant et al., 2003 26	ASD	CBT	Supportive Counseling	24	5	IES	BDI	Completer	3
Bryant et al., 2005 27	ASD	CBT	Supportive Counseling	57	6	IES	BDI	Completer, ITT	3
Borkovec & Costello, 1997 28	GAD	CBT	Nondirective Therapy	43	12	HAM-A, ADIS-R Severity, STAI-T, ZSRA, PSWQ	BDI; HAM-D	Completer	2
Wetherell et al., 2003 35	GAD	CBT	Discussion Group	52	12	ADIS-IV Severity, HAM-A, PSWQ, BAI	BDI; HAM-D	Completer	2
Foa et al., 2005 38	OCD	ERP	Pill Placebo	55	15	CGI-S, YBOCS NIMH Global OC Scale		Completer	3
Greist et al., 2002 41	OCD	BT	Systematic Relaxation	167	10	YBOCS, WSAS	HAM-D	Completer	1
Lindsay et al., 1997 45	OCD	ERP	Anxiety Management	18	15	YBOCS, PADUA, MOCI: Interference Rating Scale	BDI	Completer	1
Bakker et al., 1999 46	PD	CT	Pill Placebo	67	12	CGI-S, MSPS, PGE; Panic Frequency, Overall Phobia Score, Anticipatory Anxiety Score	MADRS	Completer, ITT	2
Barlow et al., 2000 49	PD	CBT	Pill Placebo	101	12	PDSS		Completer, ITT	3
Black et al., 1993 51	PD	CT	Pill Placebo	50	8	CGI-S, CAS, Panic Attack Severity Score, SDS	MADRS	Completer, ITT	2
Craske et al., 1995 53	PD	CBT	Nondirective-Supportive Therapy	30	4	ADIS-R – Severity, ASI, FQ, FDAS, Subjective Symptoms Scale		Completer	2
Sharp et al., 1996 57	PD	CBT	Pill Placebo	80	10		MADRS	ITT	2
Blanchard et al., 2003 58	PTSD	CBT	Supportive Counseling	73	12	CAPS-2, BSI, IES, LIFE, PCL	BDI	Completer	2
Bryant et al., 2003 63	PTSD	CBT	Supportive Counseling	38	8	CAPS-2, IES, CCQ	BDI	Completer	3
Foa et al., 1991 65	PTSD	PE	Supportive Counseling	28	9	PTSD symptom scale	BDI	Completer	2
Marks et al., 1998 67	PTSD	CBT	Relaxation	45	10	PTSD symptom scale, IES	BDI	Completer	2
McDonagh et al., 2005 68	PTSD	CBT	Problem-Solving Therapy	51	14	CAPS-2, QOLI	BDI	Completer, ITT	2
Neuner et al., 2004 70	PTSD	NET	Supportive Counseling	31	4	PDS, MOS		Completer	2
Clark et al., 2003 73	SAD	CT	Pill Placebo	43	16	ADIS-Severity, SPS, SIAS, LSAS, FQ-SP, FNE; SPWWS	BDI	Completer	2
Cottraux et al., 2000 77	SAD	CBT	Supportive Therapy	63	8	LSAS, QOL, FQ, SISST	BDI	Completer	3
Davidson et al., 2004 79	SAD	CCBT	Pill Placebo	120	14	CGI-S, BSPS, SPAI			3
Heimberg et al., 1998 82	SAD	CBGT	Educational Supportive Group Therapy; Pill Placebo*	69	12	ADIS-R-Severity, SPDS-S, LSAS, FNE, SAD, SPS, SCL-90-R-IS, SCL-90-R-PA, Impromptu Speech Task	SCL-90-R-Depression	Completer	3
Lucas, 1994 85	SAD	CBGT	Educational-Supportive Group Therapy	44	12	SPAI; SIAS; SPS, SISST	BDI	Completer	2
Smits et al., 2006 86	SAD	BT	Psychological Placebo	38	3	LSAS-SR, Impromptu Speech Task		Completer	2
Turner et al., 1994 88	SAD	BT	Pill Placebo	47	20			Completer	2

Note: ASD = Acute Stress Disorder; GAD = Generalized Anxiety Disorder; OCD = Obsessive Compulsive Disorder; PD = Panic Disorder; PTSD = Post Traumatic Stress Disorder; SAD = Social Anxiety Disorder. BT = Behavior Therapy; CT = Cognitive Therapy; CBGT = Cognitive-Behavioral Group Therapy; CBT = Cognitive-Behavioral Therapy; CCBT = Comprehensive Cognitive-Behavioral Therapy; ERP = Exposure and Response Prevention; NET = Narrative Exposure Therapy; PE = Prolonged Exposure. ADIS-IV = Anxiety Disorder Interview Schedule for DSM-IV ³⁶; ADIS-R = Anxiety Disorder Interview Schedule Revised ³⁰; ASI = Anxiety Sensitivity Index ⁵⁴; BAI = Beck Anxiety Inventory ³⁷; BDI = Beck Depression Inventory ²⁴; BSI = Brief Symptom Inventory ⁶⁰; BSPS = Brief Social Phobia Scale ⁸⁰; CAPS-2 = Clinician Administered PTSD Scale, version 2 ⁵⁹; CAS = Clinical Anxiety Scale ⁵²; CCQ = Catastrophic Cognitions Questionnaire ⁶⁴; CGI - S = Clinical Global Impressions Scale – Severity ³⁹; FDAS = Four Dimensional Anxiety Scale ⁵⁶; FNE = Fear of Negative Evaluation Scale ⁷⁶; FQ = Fear Questionnaire ⁵⁵; FQ – SP = Fear Questionnaire – Social Phobia scale ⁵⁵; HAM-A = Hamilton Anxiety Rating Scale ²⁹; HAM – D = Hamilton Depression Rating Scale ³¹; IES = Impact of Event Scale ²³; LIFE = The LIFE Base ⁶¹; LSAS = Liebowitz Social Anxiety Scale ⁷⁵; LSAS-SR = Liebowitz Social Anxiety Scale – Self Report ⁸⁷; MADRS = Montgomery-Asberg Depression Rating Scale ⁴⁸; MOCI = Maudsley Obsessional-Compulsive Inventory ⁴⁴; MSPS = Marks-Sheehan Phobia Scale ⁴⁷; PADUA = The Padua Inventory ⁴³; PCL = PTSD Checklist ⁶²; PDS = Post-traumatic Stress Diagnostic Scale⁷¹; PDSS = Panic Disorder Severity Scale ⁵⁰; PGE = Patient Global Evaluation ⁴⁷; PSWQ = Penn State Worry Questionnaire ³⁴; PTSD symptom scale = Post-traumatic Stress Disorder Symptom Scale⁶⁶; QOL = Quality of Life scale ⁷⁷; QOLI = Quality of Life Index ⁶⁹; SAD = Social Avoidance and Distress Scale ⁷⁶; SCL – 90-R-Depression = Symptom Checklist 90 Revised – Depression ⁸⁴; SCL – 90-R-IS = Symptom Checklist 90 Revised – Interpersonal Sensitivity ⁸⁴; SCL-90- PA = Symptom Checklist 90 Revised – Phobic Anxiety ⁸⁴, SDS = Sheehan Disability Scale ⁴⁷; SIAS = Social Interaction Anxiety Scale ⁷⁴; SISST = Social Interaction Self-Statement Test ⁷⁸; SPAI = Social Phobia Anxiety Inventory ⁸¹; SPDS-S = Social Phobic Disorder Severity and Change Form - Severity ⁸³; SPS = Social Phobia Scale ⁷⁴; SPWSS = Social Phobia Weekly Summary Scale ⁷³; SRT = Symptom Rating Test⁷²; STAI-T = State Trait Anxiety Inventory – Trait subscale ³²; WSAS = Work and Social Adjustment Scale ⁴²; YBOCS = Yale Brown Obsessive Compulsive Scale ⁴⁰; ZSRA = Zung Self-Rating of Anxiety Scale ³³.