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Utility of the Outcome Questionnaire‐45.2 in outpatient anxiety clinics: A comparison between anxiety patients with and without co‐occurring depression

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Journal of Clinical Psychology

Published online on

Abstract

--- - |2+ Abstract Objective The Outcome Questionnaire‐45.2 (OQ‐45) is a self‐report measure of general psychological distress. Although intended to be transdiagnostic, the OQ‐45 may be best conceptualized as a measure of depression; as such, its utility in assessing other symptoms such as anxiety is unclear. Method We examined scores on the OQ‐45 in a sample of 329 patients with anxiety and related disorders, half of whom had co‐occurring depression. Results Eighty‐two percent of patients scored above the OQ‐45 cutoff, whereas 18% were incorrectly screened out. Patients with co‐occurring depression were more likely to score above the OQ‐45 cutoff than nondepressed patients. Depression severity predicted many of the OQ‐45 scales, even after controlling for anxiety severity. By contrast, most of the anxiety‐specific measures failed to predict the OQ‐45 after controlling for depression severity. Conclusions Findings suggest that the OQ‐45 may not adequately capture anxiety symptoms and are discussed in terms of diagnostic screening and assessment. - Journal of Clinical Psychology, Volume 74, Issue 9, Page 1570-1582, September 2018.