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Unlike the PHQ-9, clinicians use the GAD-7 to assess the severity of anxiety only. Unlike the PHQ-9, the GAD-7 does not generate provisional diagnoses. A clinical interview must be given to arrive at a clinical diagnosis. The GAD-2 is a 2-question shortened version of the GAD-7; it uses the first two items on the GAD-7.
The PHQ-9, GAD-7, and the PHQ-15 were combined to create the PHQ-somatic, anxiety, depressive symptoms (PHQ-SADS) [2] and includes questions regarding panic attacks (after the GAD-7 section). Though less commonly used, there are also brief versions of the PHQ-9 and GAD-7 that may be useful as screening tools in some settings.
The Generalized Anxiety Disorder 7-item scale (GAD-7) is a widely used self-administered diagnostic tool designed to screen for and assess the severity of generalized anxiety disorder (GAD). [1] Comprising seven items, the GAD-7 measures the frequency of anxiety symptoms over the past two weeks, with respondents rating each item on a scale from ...
Using a cut-off of 8 the GAD-7 has a sensitivity of 92% and specificity of 76% for diagnosis generalized anxiety disorder. The following cut-offs correlate with level of anxiety severity: Score 0-4: Minimal Anxiety; Score 5-9: Mild Anxiety; Score 10-14: Moderate Anxiety; Score greater than 15: Severe Anxiety
The Patient Health Questionnaire-2 (PHQ-2) is a shorter version of the PHQ-9 with two screening questions to assess the presence of a depressed mood and a loss of interest or pleasure in routine activities; a positive response to either question indicates further testing is required. [10]
[1] [2] Others include the Beck Depression Inventory, the CORE-OM, Generalized Anxiety Disorder 7 (GAD-7) and the Patient Health Questionnaire (PHQ-9), amongst others. [3] By comparing scores before, during and after completion of talking therapy, the measure enables calculation of a change score.
The GAD-7 has a sensitivity of 57-94% and a specificity of 82-88% in the diagnosis of general anxiety disorder. [7] All screening questionnaires, if positive, should be followed by clinical interview including assessment of impairment and distress, avoidance behaviors, symptom history and persistence to definitively diagnose an anxiety disorder ...
[9]: vii He developed psychiatric methods that focused on asking specific interview questions to get at a diagnosis as opposed to the open-ended questioning of psychoanalysis, which was the predominant technique of mental health. [4] He codeveloped the Mood Disorder Questionnaire (MDQ), a screening technique used for diagnosing bipolar disorder ...