Horton, Mike and Perry, Amanda E orcid.org/0000-0002-0279-1884 (2016) Screening for depression in primary care:a Rasch analysis of the PHQ-9. BJPsych bulletin. pp. 237-243. ISSN 2056-4694
Abstract
Aims and method To explore the modern psychometric properties of the Patient Health Questionnaire (PHQ-9), we used the Rasch analysis in a sample of 767 primary care patients with depression. Results The analysis highlighted dependency issues between items 1 and 2 ('Little interest or pleasure in doing things' and 'Feeling down, depressed, or hopeless'), and items 3 and 4 ('Trouble falling or staying asleep, or sleeping too much' and 'Feeling tired or having little energy'). Items 1 and 2 displayed an over-discrimination, suggesting their potential redundancy within the complete item set. Clinical implications In its current format the PHQ-9 displays some problems with regard to its measurement structure among a sample of primary care patients. These problems can be addressed by removing potentially redundant items to deliver a stable screening tool. The results also lend support for the PHQ-2 to be used as a screening tool in a primary care setting.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors |
Keywords: | Journal Article |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Health Sciences (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Jun 2017 10:15 |
Last Modified: | 21 Jan 2025 17:26 |
Published Version: | https://doi.org/10.1192/pb.bp.114.050294 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1192/pb.bp.114.050294 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:117454 |
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Description: Screening for depression in primary care: a Rasch analysis of the PHQ-9
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