Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations

<p>Abstract</p> <p>Background</p> <p>The Hospital Anxiety and Depression Scale (HADS) is a common screening instrument excluding somatic symptoms of depression and anxiety, but previous studies have reported inconsistencies of its factor structure. The construct validit...

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Main Authors: Ohuchi Kiyoshi, Mitoma Hiroshi, Kano Rikihachiro, Kikuchi Hiroyoshi, Igarashi Hiromi, Matsudaira Tomomi, Kitamura Toshinori
Format: Article
Language:English
Published: BMC 2009-05-01
Series:Health and Quality of Life Outcomes
Online Access:http://www.hqlo.com/content/7/1/42
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author Ohuchi Kiyoshi
Mitoma Hiroshi
Kano Rikihachiro
Kikuchi Hiroyoshi
Igarashi Hiromi
Matsudaira Tomomi
Kitamura Toshinori
author_facet Ohuchi Kiyoshi
Mitoma Hiroshi
Kano Rikihachiro
Kikuchi Hiroyoshi
Igarashi Hiromi
Matsudaira Tomomi
Kitamura Toshinori
author_sort Ohuchi Kiyoshi
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>The Hospital Anxiety and Depression Scale (HADS) is a common screening instrument excluding somatic symptoms of depression and anxiety, but previous studies have reported inconsistencies of its factor structure. The construct validity of the Japanese version of the HADS has yet to be reported. To examine the factor structure of the HADS in a Japanese population is needed.</p> <p>Methods</p> <p>Exploratory and confirmatory factor analyses were conducted in the combined data of 408 psychiatric outpatients and 1069 undergraduate students. The data pool was randomly split in half for a cross validation. An exploratory factor analysis was performed on one half of the data, and the fitness of the plausible model was examined in the other half of the data using a confirmatory factor analysis. Simultaneous multi-group analyses between the subgroups (outpatients vs. students, and men vs. women) were subsequently conducted.</p> <p>Results</p> <p>A two-factor model where items 6 and 7 had dual loadings was supported. These factors were interpreted as reflecting anxiety and depression. Item 10 showed low contributions to both of the factors. Simultaneous multi-group analyses indicated a factor pattern stability across the subgroups.</p> <p>Conclusion</p> <p>The Japanese version of HADS indicated good factorial validity in our samples. However, ambiguous wording of item 7 should be clarified in future revisions.</p>
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spelling doaj.art-ba16b00c6d3b4cb9a877df2c00ebbb3a2022-12-21T19:14:04ZengBMCHealth and Quality of Life Outcomes1477-75252009-05-01714210.1186/1477-7525-7-42Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populationsOhuchi KiyoshiMitoma HiroshiKano RikihachiroKikuchi HiroyoshiIgarashi HiromiMatsudaira TomomiKitamura Toshinori<p>Abstract</p> <p>Background</p> <p>The Hospital Anxiety and Depression Scale (HADS) is a common screening instrument excluding somatic symptoms of depression and anxiety, but previous studies have reported inconsistencies of its factor structure. The construct validity of the Japanese version of the HADS has yet to be reported. To examine the factor structure of the HADS in a Japanese population is needed.</p> <p>Methods</p> <p>Exploratory and confirmatory factor analyses were conducted in the combined data of 408 psychiatric outpatients and 1069 undergraduate students. The data pool was randomly split in half for a cross validation. An exploratory factor analysis was performed on one half of the data, and the fitness of the plausible model was examined in the other half of the data using a confirmatory factor analysis. Simultaneous multi-group analyses between the subgroups (outpatients vs. students, and men vs. women) were subsequently conducted.</p> <p>Results</p> <p>A two-factor model where items 6 and 7 had dual loadings was supported. These factors were interpreted as reflecting anxiety and depression. Item 10 showed low contributions to both of the factors. Simultaneous multi-group analyses indicated a factor pattern stability across the subgroups.</p> <p>Conclusion</p> <p>The Japanese version of HADS indicated good factorial validity in our samples. However, ambiguous wording of item 7 should be clarified in future revisions.</p>http://www.hqlo.com/content/7/1/42
spellingShingle Ohuchi Kiyoshi
Mitoma Hiroshi
Kano Rikihachiro
Kikuchi Hiroyoshi
Igarashi Hiromi
Matsudaira Tomomi
Kitamura Toshinori
Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
Health and Quality of Life Outcomes
title Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
title_full Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
title_fullStr Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
title_full_unstemmed Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
title_short Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations
title_sort factor structure of the hospital anxiety and depression scale in japanese psychiatric outpatient and student populations
url http://www.hqlo.com/content/7/1/42
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