Anxiety in Primary Care
Generalized anxiety disorder affects approximately 3% of primary care patients; social anxiety disorder affects roughly 7%. Both carry substantial morbidity when undetected — and elevated suicide risk. Systematic screening tools are essential in any busy clinical environment where lengthy interviews are not feasible.
The GAD-7 Scale
Developed and validated across 965 patients in 15 practices, the GAD-7 uses structured clinician interviews as its reference standard. The first two items form the GAD-2, an ultra-brief screen that can precede the full assessment when time is especially tight.
A cutoff score of 9 or above offers the optimal balance of sensitivity and specificity. Despite its name, the GAD-7 shows meaningful accuracy for panic disorder, social anxiety disorder, and PTSD as well.
Score Interpretation
- 5–9: Mild — watchful waiting and patient education
- 10–14: Moderate — further assessment, possible treatment
- 15+: Severe — active treatment indicated
A positive screen warrants confirmatory clinical interviewing — approximately half of patients with elevated scores do not meet full diagnostic criteria. The GAD-7's strong negative predictive value makes it efficient for ruling out anxiety disorders quickly.
Clinical Workflow
In high-volume clinic settings, embedding the GAD-7 into the pre-visit workflow — with results visible in the note before the encounter — allows providers to allocate clinical time appropriately and document screening compliance without any extra steps.
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