This easy to use self-administered patient questionnaire is used as a screening tool and severity measure for generalised anxiety disorder.^1,2

Generalised Anxiety Disorder Questionnaire (GAD-7)
Over the last 2 weeks, how often have you been bothered by any of the following problems?
Feeling nervous, anxious or on edge?	Not at all Several days More than half the days Nearly every day
Not being able to stop or control worrying?	Not at all Several days More than half the days Nearly every day
Worrying too much about different things?	Not at all Several days More than half the days Nearly every day
Trouble relaxing?	Not at all Several days More than half the days Nearly every day
Being so restless that it is hard to sit still?	Not at all Several days More than half the days Nearly every day
Becoming easily annoyed or irritable?	Not at all Several days More than half the days Nearly every day
Feeling afraid as if something awful might happen?	Not at all Several days More than half the days Nearly every day
Total= /21

The GAD-7 originates from Spitzer RL, Kroenke K, Williams JB, et al; A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med. 2006 May 22;166(10):1092-7. GAD-7 © Pfizer Inc. all rights reserved; used with permission.

The GAD-7 score is calculated by assigning scores of 0, 1, 2, and 3, to the response categories of “not at all,” “several days,” “more than half the days,” and “nearly every day,” respectively, and adding together the scores for the seven questions. ³

Scores of 5, 10, and 15 are taken as the cut off points for mild, moderate, and severe anxiety, respectively. When used as a screening tool, further evaluation is recommended when the score is 10 or greater.
Using the threshold score of 10, the GAD-7 has a sensitivity of 89% and a specificity of 82% for generalised anxiety disorder. It is moderately good at screening three other common anxiety disorders – panic disorder (sensitivity 74%, specificity 81%), social anxiety disorder (sensitivity 72%, specificity 80%), and post-traumatic stress disorder (sensitivity 66%, specificity 81%).⁴

Acknowledgements

EMIS is grateful to Dr Huw Thomas for writing this article. The final copy has passed scrutiny by the independent Mentor GP reviewing team. ©EMIS 2010.
Document ID: 8736
Document Version: 10
Document Reference: bgp26141
Last Updated: 30 Jun 2009