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Q What is the diagnostic accuracy of the Generalised Anxiety Disorder (GAD)-7 scale?
Clinical impact ratings GP/FP/Mental health ★★★★★★☆ Psychiatry ★★★★★★☆
blinded comparison of the GAD-7 scale with GAD criteria from the DSM-IV.
13 family practices and 2 internal medicine clinics in the US.
a random sample of 965 out of 2739 patients 18–95 years of age (mean age 47 y, 65% women, 80% white) who completed a study questionnaire including the GAD-7 scale were evaluated with the diagnostic standard.
Description of test:
the GAD-7 scale: patients rate answers (0 = not at all, 1 = several days, 2 = more than half the days, 3 = nearly every day) to 7 anxiety related questions; how often in the past …
For correspondence: Dr R L Spitzer, New York State Psychiatric Institute, New York, NY, USA.
Source of funding: Pfizer Inc.