Single-item screening for agoraphobic symptoms: validation of a web-based audiovisual screening instrument

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Abstract

The advent of web-based treatments for anxiety disorders creates a need for quick and valid online screening instruments, suitable for a range of social groups. This study validates a single-item multimedia screening instrument for agoraphobia, part of the Visual Screener for Common Mental Disorders (VS-CMD), and compares it with the text-based agoraphobia items of the PDSS-SR. The study concerned 85 subjects in an RCT of the effects of web-based therapy for panic symptoms. The VS-CMD item and items 4 and 5 of the PDSS-SR were validated by comparing scores to the outcomes of the CIDI diagnostic interview. Screening for agoraphobia was found moderately valid for both the multimedia item (sensitivity.81, specificity.66, AUC.734) and the text-based items (AUC.607-.697). Single-item multimedia screening for anxiety disorders should be further developed and tested in the general population and in patient, illiterate and immigrant samples.

Original languageEnglish
Article numbere38480
Number of pages8
JournalPLoS ONE
Volume7
Issue number7
DOIs
Publication statusPublished - 23 Jul 2012

Keywords

  • Adult
  • Agoraphobia
  • Diagnostic Equipment
  • Humans
  • Internet
  • Male
  • Multimedia
  • Panic Disorder
  • Predictive Value of Tests
  • Randomized Controlled Trials as Topic
  • Self Report
  • Time Factors
  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Validation Studies

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