Study	Reason for exclusion
Bourin 1995	In abstract and Patients section, describe 43 patients with demographics and then in study procedure, talk about 60 patients without demographic data; confusing to interpret
Bouvard 1998	Missing data on number in each arm with minimal demographic data available
Caetano 1990	Could not locate this article
Costa e Silva 1987	Could not locate this article
Fontaine 1987	This trial do not present the number of patients within each group for all parameteres studied.
Goldberg 1982	Diagnostic criteria used: DSM II
Lucki 1987	Non‐randomized trial
Olajide 1987	Non‐ramdomized trial; cross‐over allocation
Petracca 1990	Dosing of medications beginning point recorded but only flexible dosing after that and not a final range
Rickels 1982	A formal diagnosis of Generalized Anxiety Disorder was not made
Rickels 1988	Generalized Anxiety Disorder and Panic Disorder; results not reported by disorder
Rickels 2000	Non‐randomized trial
Rolland 2000	Minimal demographic data reported and results not reported; dropouts not reported by treatment and results of measured not reported by HAM‐A scores or CGI improved or much improved
Rouillon 1995	Missing reported data as far as drop outs, side effects, and end point HAM‐A scores and SD that can be used in the analysis
Schweizer 1990	Numbers in treatment groups not included
Shah 1991	Unclear randomization
Shen 1999	Not able to locate this article
Sontheimer 2001	No randomization
Sramek 1996	Phase I trial with unclear statistical analysis procedures
Strand 1990	Standardized criteria for GAD not used
Tollefson 1991	This trial includes alcohol abuse/dependency as comorbidies
Tyrer 1984	Data not separated out by diagnoses of GAD
van Amerongen 1991	Not able to locate this article
van Laar 1992
Wheatley 1982	Criteria used are not standardized acccording DSM / ICD diagnostic criteria.
Yevich 1990	No demographic data and results only repoted by bar graph, dropouts and side effect data not reported