Author/Authors :
Sedano-Capdevila, Alba Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Barrigón, María Luisa Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Delgado-Gomez, David Departamento de Estadıstica - Universidad Carlos III - Getafe - Madrid, Spain , Barahona, Igor Universidad Nacional Autonoma de Mexico - Ciudad de Mexico, Mexico , Aroca, Fuensanta Universidad Nacional Autonoma de Mexico - Ciudad de Mexico, Mexico , Peñuelas-Calvo, Inmaculada Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Miguelez-Fernandez, Carolina Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Rodríguez-Jover, Alba Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Amodeo-Escribano, Susana Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , González-Granado, Marta Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain , Baca-García, Enrique Department of Psychiatry - IIS-Jimenez Dıaz Foundation - Madrid, Spain
Abstract :
WHODAS 2.0 is the standard measure of disability promoted by World Health Organization whereas Clinical Global Impression
(CGI) is a widely used scale for determining severity of mental illness. Although a close relationship between these two scales would
be expected, there are no relevant studies on the topic. In this study, we explore if WHODAS 2.0 can be used for identifying severity
of illness measured by CGI using the Fisher Linear Discriminant Analysis (FLDA) and for identifying which individual items of
WHODAS 2.0 best predict CGI scores given by clinicians. One hundred and twenty-two patients were assessed with WHODAS 2.0
and CGI during three months in outpatient mental health facilities of four hospitals of Madrid, Spain. Compared with the traditional
correction of WHODAS 2.0, FLDA improves accuracy in near 15%, and so, with FLDA WHODAS 2.0 classifying correctly 59.0%
of the patients. Furthermore, FLDA identifes item 6.6 (illness efect on personal fnances) and item 4.5 (damaged sexual life) as the
most important items for clinicians to score the severity of illness.
