Exam

Generalized Anxiety Disorder Scale

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Generalized Anxiety Disorder Scale, GAD-7, GAD-2

  1. Generalized Anxiety Disorder
  2. Panic Disorder
  3. Social Anxiety Disorder
  4. Post-Traumatic Stress Disorder
  • Scoring
  • Answers
  1. Not at all: 0
  2. Several days: 1
  3. More than half the days: 2
  4. Nearly every day: 3
  • Questions
  • Over the past 2 weeks, how often have you been bothered by the following problems
  1. Feeling nervous, anxious or on edge
  2. Being unable to stop or control worrying
  3. Worrying too much about different things
  4. Having trouble relaxing
  5. Being so restless that it is hard to sit still
  6. Becoming easily annoyed or irritable
  7. Feeling afraid, as if something awful might happen
  • Interpretation
  • GAD-2
  1. First 2 questions above are each scored with one of 4 answers above
  2. Total score >3 suggests Anxiety Disorder or Panic Disorder
  • Interpretation
  • GAD-7
  1. All 7 questions above are each scored with one of 4 answers above
  2. Initial Diagnosis
    1. Score >8: Consistent with Anxiety Disorder or Panic Disorder
  3. Monitoring
    1. Score 5-9: Mild Anxiety
    2. Score 10-14: Moderate Anxiety
    3. Score >15: Severe Anxiety
  • Efficacy
  • GAD7
  1. Generalized Anxiety Disorder
    1. Test Sensitivity: 89%
    2. Test Specificity: 82%
  2. Panic Disorder
    1. Test Sensitivity: 74%
    2. Test Specificity: 81%
  3. Social Anxiety Disorder
    1. Test Sensitivity: 72%
    2. Test Specificity: 80%
  4. Post-Traumatic Stress Disorder (PTSD)
    1. Test Sensitivity: 66%
    2. Test Specificity: 81%
  • References
  1. Kroenke (2007) Ann Intern Med 146(5): 317-25 +PMID:17339617 [PubMed]
  2. Spitzer (2006) Arch Intern Med 166(10): 1092-7 [PubMed]