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. 2007 Jan 24;2007(1):CD001848. doi: 10.1002/14651858.CD001848.pub4

Stanley 1996.

Methods Allocation: randomised at patient level in groups of 4‐6 ‐ method not reported
 Blinding: not reported
 Trial duration: 14 weeks
 Follow‐up: 6 months
Participants Setting: university health sciences centre
 Population: elderly volunteers
 Sample size: 48
 Diagnosis: primary diagnosis of GAD, based on diagnostic interview using ADIS‐R
 Comorbidity: 58% had secondary MH diagnoses
Interventions 1. CBT 2. Non‐directive supportive therapy
 Modality: group
 Intensity: 14 weekly 90‐min sessions over 14 weeks
 Manualised: yes
 Treatment fidelity: tested by clinical psychologist who assessed videotapes using a checklist
Outcomes Clinician‐rated: ADIS‐R, HAMA, HAMD Self‐report: Worry Scale, PSWQ, STAI, BDI, FQ
Notes QRS total score: 26
 Overall dropout rate: 31.2
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Unclear risk B ‐ Unclear