Pecknold 1985.

Methods	1. Randomized 2. Double blind 3. Three parallel groups ‐ placebo ‐ Diazepam 5‐40 mg/d ‐ Buspirone 5‐40 mg/d) 4. Duration: 4 weeks with seven day washout period with placebo prior 5. Analysis: Two‐Way ANOVA and Cochran‐Mantel‐Haenszel test
Participants	1. Diagnosis: GAD (DSM‐III) 2. N = 60 3. Age: Buspirone = 34.71 Diazepam = 35.81 Placebo = 35.33 Sex: 65% females Setting: outpatients History: excluded any significant psychiatric disorder other than GAD
Interventions	1. Placebo (N = 18) 2. Diazepam (N = 21) 3. Buspirone (N = 21)
Outcomes	1. dropout rates 2. SCL‐56 3. HAM ‐A 5. CGI
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear