Social:Generalized Anxiety Disorder 7

From HandWiki
Generalized Anxiety Disorder 7 item
Medical diagnostics
SynonymsGAD-7
LOINC69737-5

Generalized Anxiety Disorder 7 (GAD-7) is a self-reported questionnaire for screening and severity measuring of generalized anxiety disorder (GAD).[1] GAD-7 has seven items, which measure severity of various signs of GAD according to reported response categories with assigned points.[2] The GAD-7 items include: 1) nervousness; 2) inability to stop worrying; 3) excessive worry; 4) restlessness; 5) difficulty in relaxing; 6) easy irritation; and 7) fear of something awful happening.[3] Assessment is indicated by the total score, which is made up by adding together the scores for the scale of all seven items.[4] The GAD-7 was originally validated in a primary care sample and a cutoff score of 10 (which the authors considered optimal) had a sensitivity value of 0.89 and a specificity value of 0.82 for identifying GAD. The authors of the questionnaire also found acceptable sensitivity and specificity values when the questionnaire was used as a general screen to identify other anxiety disorders (Panic Disorder, Social Anxiety, and PTSD) (GAD-7, score ≥ 8: sensitivity: 0.77, specificity: 0.82).[5]

GAD-7 is a sensitive self-administrated test to assess generalized anxiety disorder,[6] normally used in outpatient and primary care settings for referral to a psychiatrist pending outcome.[2] The normative data enable users of the GAD-7 to discern whether an individual’s anxiety score is normal, or mildly, moderately, or severely elevated. [7] However, it cannot be used as replacement for clinical assessment and additional evaluation should be used to confirm a diagnosis of GAD.[citation needed]

The scale uses a normative system of scoring as shown below—bullet points of answer options and points assigned—with a question at the end qualitatively describing the severity of the patient's anxiety over the past 2 weeks.[2]

  • Not at all (0 points)
  • Several days (1 point)
  • More than half the days (2 points)
  • Nearly every day (3 points)

Reliability and validity

The use of sumscores (i.e. summing the scores of each item) is supported by psychometric studies, but using techniques based on factor analysis is deemed more precise.[8]

The GAD-7 is a valid and efficient tool for screening for GAD and assessing its severity in clinical practice and research.[9]

The GAD-7 showed acceptable psychometric properties in a rural Indian population (ώ-hierarchical = 0.76).[8]

See also

References

  1. "A brief measure for assessing generalized anxiety disorder: the GAD-7". Archives of Internal Medicine 166 (10): 1092–7. May 2006. doi:10.1001/archinte.166.10.1092. PMID 16717171. 
  2. 2.0 2.1 2.2 "Validation and standardization of the Generalized Anxiety Disorder Screener (GAD-7) in the general population". Medical Care 46 (3): 266–74. March 2008. doi:10.1097/mlr.0b013e318160d093. PMID 18388841. 
  3. "Diagnostic Validity of the Generalized Anxiety Disorder - 7 (GAD-7) among Pregnant Women". PLOS ONE 10 (4): e0125096. 2015-04-27. doi:10.1371/journal.pone.0125096. PMID 25915929. Bibcode2015PLoSO..1025096Z. 
  4. "The GAD-7 scale was accurate for diagnosing generalised anxiety disorder". Evidence-Based Medicine 11 (6): 184. December 2006. doi:10.1136/ebm.11.6.184. PMID 17213178. https://ebm.bmj.com/content/11/6/184. 
  5. "Screening for anxiety disorders with the GAD-7 and GAD-2: a systematic review and diagnostic metaanalysis". General Hospital Psychiatry 39: 24–31. 2016-03-01. doi:10.1016/j.genhosppsych.2015.11.005. PMID 26719105. http://www.sciencedirect.com/science/article/pii/S0163834315002406. 
  6. "Anxiety disorders in primary care: prevalence, impairment, comorbidity, and detection". Annals of Internal Medicine 146 (5): 317–25. March 2007. doi:10.7326/0003-4819-146-5-200703060-00004. PMID 17339617. 
  7. "Validation and standardization of the Generalized Anxiety Disorder Screener (GAD-7) in the general population". Medical Care 46 (3): 266–74. March 2008. doi:10.1097/MLR.0b013e318160d093. PMID 18388841. 
  8. 8.0 8.1 "Are the PHQ-9 and GAD-7 Suitable for Use in India? A Psychometric Analysis". Frontiers in Psychology 12: 676398. 2021-05-13. doi:10.3389/fpsyg.2021.676398. PMID 34054677. 
  9. "A brief measure for assessing generalized anxiety disorder: the GAD-7". Archives of Internal Medicine 166 (10): 1092–7. May 2006. doi:10.1001/archinte.166.10.1092. PMID 16717171. 

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