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Screening for generalized anxiety disorder in Spanish Primary Care Centers with the GAD-7

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Author
Muñoz-Navarro, Roger
Cano-Vindel, Antonio
Moriana Elvira, Juan Antonio
Medrano, Leonardo Adrián
Ruiz-Rodríguez, Paloma
Agüero, Laura
Rodríguez-Enríquez, Mónica
Pizà, María Rosa
Ramírez-Manent, Ignasi
Publisher
Elsevier
Date
2017
Subject
Screening
Generalized anxiety disorder
GAD-7
Primary care
Criterion validity
Computerized instruments
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Abstract
The aim of the study was to determine the criterion validity of a computerized version of the General Anxiety Disorder-7 (GAD-7) questionnaire to detect general anxiety disorder in Spanish primary care centers. A total of 178 patients completed the GAD-7 and were administered the Composite International Diagnostic Interview (CIDI) for DSM-IV Axis I Disorders, which was used as a reference standard. Sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios were calculated. A cut-off of 10 yielded a sensitivity of .87, a specificity of .78, a positive predictive value of .93, a negative predictive value of .64, a positive likelihood ratio of 3.96 a negative likelihood ratio of .17 and Younden’s Index of .65. The GAD-7 performed very well with a cut-off value of 10, the most frequently used cut-off point. Thus, a computerized version of the GAD-7 is an excellent screening tool for detecting general anxiety disorder in Spanish primary care settings.
URI
http://hdl.handle.net/10396/14896
Fuente
Psychiatry Research
Versión del Editor
http://dx.doi.org/10.1016/j.psychres.2017.06.023
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