Southam Gerow 2010.

Study characteristics
Methods	Study design: randomised controlled trial Number of study centres and location: USA Study setting: recruited from 6 mental health clinics
Participants	N = 48 (CBT: N = 24; TAU: N = 24) Mean age (SD): 10.9 (2.1) Age range: 8 to 15 Gender: 56.2% female Inclusion criteria: primary diagnosis of GAD, separation anxiety disorder, social phobia, specific phobia (based on DISC); anxiety the treatment priority Exclusion criteria: a) pervasive developmental disorder, (b) a psychotic disorder, or (c) mental retardation
Interventions	CBT Intervention: Coping Cat Concomitant/excluded medications: medication use was tracked during treatment Delivery format: child only; individual Therapist contact time: 16 to 20 sessions Who delivers the intervention: social workers/doctoral‐level psychologists/Master's‐level psychologists/other (e.g. marriage and family therapists) TAU Intervention: usual care. Therapists used treatment procedures regularly used and believed to be effective in clinical practice. Concomitant/excluded medications: medication use was tracked during treatment Delivery format: child only; individual Who delivers the intervention: social workers/doctoral‐level psychologists/Master's‐level psychologists/other (e.g. marriage and family therapists)
Outcomes	Remission of primary anxiety disorder diagnosis post‐treatment: DISC Reduction in anxiety symptoms (child report) post‐treatment: STAIC‐Trait Reduction in anxiety symptoms (parent report) post‐treatment: STAIC‐Trait
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Judgement Comment: Block randomised
Allocation concealment (selection bias)	Unclear risk	Judgement Comment: No detail given
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Judgement Comment: No detail given
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Judgement Comment: Blind assessors
Incomplete outcome data (attrition bias) All outcomes	Low risk	Judgement Comment: Attrition fully described. Appropriate method used for managing missing data ‐ diagnostic outcomes report for completers and using ITT, and explored if any differences between those with and without missing data.
Selective reporting (reporting bias)	Low risk	Judgement Comment: Outcomes for measures reported
Other source of bias ‐ Therapy integrity	Low risk	Judgement Comment: Therapists trained and supervised. Adherence assessed.
Other bias	Low risk	Judgement Comment: The study appears to be free of other sources of bias