{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T11:15:58Z","timestamp":1788779758344,"version":"build-2803163510"},"reference-count":36,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,7,8]],"date-time":"2013-07-08T00:00:00Z","timestamp":1373241600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geriatrics Gerontology Int"],"published-print":{"date-parts":[[2014,4]]},"abstract":"<jats:sec><jats:title>Aim<\/jats:title><jats:p>Measurement of health\u2010related quality of life in people with dementia is a challenge, because of their special characteristics and the difficulties that this term entails itself. The present study aimed at assessing the psychometric properties of the <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> rated by a familiar or a professional caregiver of institutionalized older adults with dementia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We analyzed the <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> psychometric properties from 525 questionnaires rated by proxy, in a sample of institutionalized older adults with dementia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> index score was 0.11\u2009\u00b1\u20090.38, and 51.54\u2009\u00b1\u200921.47 for the visual analog scale. The intraclass correlation coefficient was 0.72. Regarding internal consistency, <jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>ronbach's alpha was 0.64, and the item\u2010total correlation ranged from 0.33 to 0.53. Exploratory factor analysis identified a functional and a subjective factor, accounting for 67.35% of the variance. Convergent validity of <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> with Quality of Life Alzheimer's Disease by proxy and Quality of Life in Late\u2010stage Dementia scales was satisfactory (<jats:italic>r<\/jats:italic>\u2009=\u20090.36\u20130.58). The <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> showed appropriate discriminative validity among patients grouped into several categories. Multiple linear regression models, using <jats:styled-content style=\"fixed-case\">EQ<\/jats:styled-content>\u2010index and visual analog scale as dependent variables, identified dependence level, proxy characteristics, leisure and comorbidity as determinants of quality of life.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Despite some limitations in the more subjective dimensions, the proxy\u2010rated <jats:styled-content style=\"fixed-case\">EQ\u20105D<\/jats:styled-content> showed satisfactory psychometric properties in the present study, suggesting that it is a valid and alternative instrument to assess quality of life in institutionalized older people with dementia. <jats:bold>Geriatr Gerontol Int 2014; 14: 346\u2013353.<\/jats:bold><\/jats:p><\/jats:sec>","DOI":"10.1111\/ggi.12108","type":"journal-article","created":{"date-parts":[[2013,7,8]],"date-time":"2013-07-08T05:19:02Z","timestamp":1373260742000},"page":"346-353","source":"Crossref","is-referenced-by-count":45,"title":["<scp>EQ\u20105D<\/scp> rated by proxy in institutionalized older adults with dementia: Psychometric pros and cons"],"prefix":"10.1111","volume":"14","author":[{"given":"Alicia","family":"Diaz\u2010Redondo","sequence":"first","affiliation":[{"name":"National School of Public Health Carlos III Institute of Health  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carmen","family":"Rodriguez\u2010Blazquez","sequence":"additional","affiliation":[{"name":"Consortium for Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health  Madrid Spain"},{"name":"National Center of Epidemiology Carlos III Institute of Health  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alba","family":"Ayala","sequence":"additional","affiliation":[{"name":"National School of Public Health Carlos III Institute of Health  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pablo","family":"Martinez\u2010Martin","sequence":"additional","affiliation":[{"name":"Consortium for Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health  Madrid Spain"},{"name":"Alzheimer Disease Research Unit, CIEN Foundation Carlos III Institute of Health Alzheimer Center Reina Sofia Foundation  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Jo\u00e3o","family":"Forjaz","sequence":"additional","affiliation":[{"name":"National School of Public Health Carlos III Institute of Health  Madrid Spain"},{"name":"Spanish Research Network on Social Services and Chronicity (REDISSEC)  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"Spanish Research Group on Quality of Life and Aging","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,7,8]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006842-200205000-00016"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11136-005-4364-8"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.wad.0000201851.52707.c9"},{"key":"e_1_2_7_5_1","first-page":"114","article-title":"The quality of life in late\u2010stage dementia (QUALID) scale","volume":"1","author":"Weiner MF","year":"2000","journal-title":"J Am Med Dir Assoc"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/00005650-200108000-00003"},{"key":"e_1_2_7_7_1","first-page":"337","article-title":"Calidad de vida en enfermedad de Alzheimer [Qualty of life in Alzheimer Disease]","volume":"49","author":"Baquero M","year":"2009","journal-title":"Rev Neurol"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0168-8510(90)90421-9"},{"key":"e_1_2_7_9_1","first-page":"79","article-title":"[The Spanish version of EuroQol: a description and its applications. European Quality of Life scale]","volume":"112","author":"Badia X","year":"1999","journal-title":"Med Clin (Barc)"},{"key":"e_1_2_7_10_1","unstructured":"EuroQoL Group.EuroQol Group. User Guide. EQ\u20105D. Version 2.0. EuroQoL website2009."},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11136-004-1920-6"},{"key":"e_1_2_7_12_1","volume-title":"Task Force on DSM\u2010IV. Diagnostic and Statistical Manual of Mental Disorders: DSM\u2010IV\u2010TR","author":"American Psychiatric Association","year":"2000"},{"key":"e_1_2_7_13_1","first-page":"61","article-title":"Functional evaluation: the Barthel index","volume":"14","author":"Barthel DW","year":"1965","journal-title":"Md State Med J"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.3109\/09638288809164103"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1135-57271997000200004"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0006-3223(88)90038-8"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/0165-1781(92)90005-N"},{"key":"e_1_2_7_18_1","volume-title":"El significado de la salud en la Calidad de Vida de los Mayores [The Meaning of Health in the Quality of Life of Older People]","author":"Fernandez\u2010Mayoralas G","year":"2007"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3956(75)90026-6"},{"issue":"20","key":"e_1_2_7_20_1","first-page":"767","article-title":"[Revalidation and standardization of the cognition mini\u2010exam (first Spanish version of the Mini\u2010Mental Status Examination) in the general geriatric population]","volume":"112","author":"Lobo A","year":"1999","journal-title":"Med Clin (Barc)"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.140.6.566"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.43.11.2412-a"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1186\/1477-7525-5-33"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11136-011-9903-x"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jval.2012.08.483"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1080\/13607863.2011.562183"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11136-010-9594-8"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaceta.2008.06.007"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1524-4733.2006.00131.x"},{"key":"e_1_2_7_30_1","volume-title":"Probabilistic Models for Some Intelligence and Attainment Tests","author":"Rasch G","year":"1980"},{"key":"e_1_2_7_31_1","first-page":"49","article-title":"How to develop and validate a new health\u2010related quality of life instrument","volume":"2","author":"Juniper EF","year":"1996","journal-title":"Qual Life Pharmacoeconomics Clin Trials"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471\u20102377\u201010\u201048"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0015621"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/gps.796"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0895-4356(03)00175-6"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.regg.2008.06.001"},{"key":"e_1_2_7_37_1","doi-asserted-by":"publisher","DOI":"10.1097\/WAD.0b013e318194fc1e"}],"container-title":["Geriatrics &amp; Gerontology International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fggi.12108","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ggi.12108","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,3]],"date-time":"2023-10-03T14:21:53Z","timestamp":1696342913000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ggi.12108"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,7,8]]},"references-count":36,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2014,4]]}},"alternative-id":["10.1111\/ggi.12108"],"URL":"https:\/\/doi.org\/10.1111\/ggi.12108","archive":["Portico"],"relation":{},"ISSN":["1444-1586","1447-0594"],"issn-type":[{"value":"1444-1586","type":"print"},{"value":"1447-0594","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,7,8]]}}}