A semi‐structured interview to assess visual hallucinations in older people
Identifieur interne : 000E77 ( Main/Exploration ); précédent : 000E76; suivant : 000E78A semi‐structured interview to assess visual hallucinations in older people
Auteurs : Urs Peter Mosimann [Royaume-Uni] ; Daniel Collerton [Royaume-Uni] ; Robert Dudley [Royaume-Uni] ; Thomas Daniel Meyer [Royaume-Uni] ; Gemma Graham [Royaume-Uni] ; Jennifer Louise Dean [Royaume-Uni] ; Daniel Bearn [Royaume-Uni] ; Alison Killen [Royaume-Uni] ; Lucy Dickinson [Royaume-Uni] ; Mike Patrick Clarke [Royaume-Uni] ; Ian Grant Mckeith [Royaume-Uni]Source :
- International Journal of Geriatric Psychiatry [ 0885-6230 ] ; 2008-07.
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Abstract
Objective: Visual hallucinations are under‐reported by patients and are often undiscovered by health professionals. There is no gold standard available to assess hallucinations. Our objective was to develop a reliable, valid, semi‐structured interview for identifying and assessing visual hallucinations in older people with eye disease and cognitive impairment. Methods: We piloted the North‐East Visual Hallucinations Interview (NEVHI) in 80 older people with visual and/or cognitive impairment (patient group) and 34 older people without known risks of hallucinations (control group). The informants of 11 patients were interviewed separately. We established face validity, content validity, criterion validity, inter‐rater agreement and the internal consistency of the NEVHI, and assessed the factor structure for questions evaluating emotions, cognitions, and behaviours associated with hallucinations. Results: Recurrent visual hallucinations were common in the patient group (68.8%) and absent in controls (0%). The criterion, face and content validities were good and the internal consistency of screening questions for hallucinations was high (Cronbach alpha: 0.71). The inter‐rater agreements for simple and complex hallucinations were good (Kappa 0.72 and 0.83, respectively). Four factors associated with experiencing hallucinations (perceived control, pleasantness, distress and awareness) were identified and explained a total variance of 73%. Informants gave more ‘don't know answers’ than patients throughout the interview (p = 0.008), especially to questions evaluating cognitions and emotions associated with hallucinations (p = 0.02). Conclusions: NEVHI is a comprehensive assessment tool, helpful to identify the presence of visual hallucinations and to quantify cognitions, emotions and behaviours associated with hallucinations. Copyright © 2008 John Wiley & Sons, Ltd.
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DOI: 10.1002/gps.1965
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Tyne</wicri:regionArea><wicri:noRegion>Newcastle upon Tyne</wicri:noRegion></affiliation></author><author><name sortKey="Clarke, Mike Patrick" sort="Clarke, Mike Patrick" uniqKey="Clarke M" first="Mike Patrick" last="Clarke">Mike Patrick Clarke</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne</wicri:regionArea><wicri:noRegion>Newcastle upon Tyne</wicri:noRegion></affiliation></author><author><name sortKey="Mckeith, Ian Grant" sort="Mckeith, Ian Grant" uniqKey="Mckeith I" first="Ian Grant" last="Mckeith">Ian Grant Mckeith</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne</wicri:regionArea><wicri:noRegion>Newcastle upon Tyne</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">International Journal of Geriatric Psychiatry</title><title level="j" type="sub">A journal of the psychiatry of late life and allied sciences</title><title level="j" type="abbrev">Int. J. Geriat. Psychiatry</title><idno type="ISSN">0885-6230</idno><idno type="eISSN">1099-1166</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2008-07">2008-07</date><biblScope unit="volume">23</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="712">712</biblScope><biblScope unit="page" to="718">718</biblScope></imprint><idno type="ISSN">0885-6230</idno></series><idno type="istex">C0457984AD590A668A0051A7ED9147C8FC1DC134</idno><idno type="DOI">10.1002/gps.1965</idno><idno type="ArticleID">GPS1965</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-6230</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Charles Bonnet syndrome</term><term>Lewy body disease</term><term>assessment</term><term>structured interview</term><term>visual hallucination</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objective: Visual hallucinations are under‐reported by patients and are often undiscovered by health professionals. There is no gold standard available to assess hallucinations. Our objective was to develop a reliable, valid, semi‐structured interview for identifying and assessing visual hallucinations in older people with eye disease and cognitive impairment. Methods: We piloted the North‐East Visual Hallucinations Interview (NEVHI) in 80 older people with visual and/or cognitive impairment (patient group) and 34 older people without known risks of hallucinations (control group). The informants of 11 patients were interviewed separately. We established face validity, content validity, criterion validity, inter‐rater agreement and the internal consistency of the NEVHI, and assessed the factor structure for questions evaluating emotions, cognitions, and behaviours associated with hallucinations. Results: Recurrent visual hallucinations were common in the patient group (68.8%) and absent in controls (0%). The criterion, face and content validities were good and the internal consistency of screening questions for hallucinations was high (Cronbach alpha: 0.71). The inter‐rater agreements for simple and complex hallucinations were good (Kappa 0.72 and 0.83, respectively). Four factors associated with experiencing hallucinations (perceived control, pleasantness, distress and awareness) were identified and explained a total variance of 73%. Informants gave more ‘don't know answers’ than patients throughout the interview (p = 0.008), especially to questions evaluating cognitions and emotions associated with hallucinations (p = 0.02). Conclusions: NEVHI is a comprehensive assessment tool, helpful to identify the presence of visual hallucinations and to quantify cognitions, emotions and behaviours associated with hallucinations. Copyright © 2008 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Mosimann, Urs Peter" sort="Mosimann, Urs Peter" uniqKey="Mosimann U" first="Urs Peter" last="Mosimann">Urs Peter Mosimann</name></noRegion><name sortKey="Bearn, Daniel" sort="Bearn, Daniel" uniqKey="Bearn D" first="Daniel" last="Bearn">Daniel Bearn</name><name sortKey="Clarke, Mike Patrick" sort="Clarke, Mike Patrick" uniqKey="Clarke M" first="Mike Patrick" last="Clarke">Mike Patrick Clarke</name><name sortKey="Collerton, Daniel" sort="Collerton, Daniel" uniqKey="Collerton D" first="Daniel" last="Collerton">Daniel Collerton</name><name sortKey="Dean, Jennifer Louise" sort="Dean, Jennifer Louise" uniqKey="Dean J" first="Jennifer Louise" last="Dean">Jennifer Louise Dean</name><name sortKey="Dickinson, Lucy" sort="Dickinson, Lucy" uniqKey="Dickinson L" first="Lucy" last="Dickinson">Lucy Dickinson</name><name sortKey="Dudley, Robert" sort="Dudley, Robert" uniqKey="Dudley R" first="Robert" last="Dudley">Robert Dudley</name><name sortKey="Graham, Gemma" sort="Graham, Gemma" uniqKey="Graham G" first="Gemma" last="Graham">Gemma Graham</name><name sortKey="Killen, Alison" sort="Killen, Alison" uniqKey="Killen A" first="Alison" last="Killen">Alison Killen</name><name sortKey="Mckeith, Ian Grant" sort="Mckeith, Ian Grant" uniqKey="Mckeith I" first="Ian Grant" last="Mckeith">Ian Grant Mckeith</name><name sortKey="Meyer, Thomas Daniel" sort="Meyer, Thomas Daniel" uniqKey="Meyer T" first="Thomas Daniel" last="Meyer">Thomas Daniel Meyer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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