{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T18:10:58Z","timestamp":1759428658401,"version":"build-2065373602"},"reference-count":31,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2021,6,4]],"date-time":"2021-06-04T00:00:00Z","timestamp":1622764800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000265","name":"Medical Research Council","doi-asserted-by":"publisher","award":["UK Grant number: MR\/K501311\/1"],"award-info":[{"award-number":["UK Grant number: MR\/K501311\/1"]}],"id":[{"id":"10.13039\/501100000265","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012041","name":"Versus Arthritis","doi-asserted-by":"publisher","award":["20380","20542"],"award-info":[{"award-number":["20380","20542"]}],"id":[{"id":"10.13039\/501100012041","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["acrjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthritis Care &amp; Research"],"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>As young people enter adulthood, the interchangeable use of child and adult outcome measures may inaccurately capture changes over time. This study aimed to use item response theory (IRT) to model a continuous score for functional ability that can be used no matter which questionnaire is completed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Adolescents (ages 11\u201317 years) in the UK Childhood Arthritis Prospective Study (CAPS) self\u2010completed an adolescent Childhood Health Assessment Questionnaire (CHAQ) and a Health Assessment Questionnaire (HAQ). Their parents answered the proxy\u2010completed CHAQ. Those children with at least 2 simultaneously completed questionnaires at initial presentation or 1 year were included. Psychometric properties of item responses within each questionnaire were tested using Mokken analyses to assess the applicability of IRT modeling. A previously developed IRT model from the Pharmachild\u2010NL registry from The Netherlands was validated in CAPS participants. Agreement and correlations between IRT\u2010scaled functional ability scores were tested using intraclass correlations and Wilcoxon\u2019s signed rank tests.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 303 adolescents, the median age at diagnosis was 13 years, and 61% were female. CHAQ scores consistently exceeded HAQ scores. Mokken analyses demonstrated high scalability, monotonicity, and the fact that each questionnaire yielded reliable scores. There was little difference in item response characteristics between adolescents enrolled in CAPS and Pharmachild\u2010NL (maximum item residual 0.08). Significant differences were no longer evident between IRT\u2010scaled HAQ and CHAQ scores.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>IRT modeling allows the direct comparison of function scores regardless of different questionnaires being completed by different people over time. IRT modeling facilitates the ongoing assessment of function as adolescents transfer from pediatric clinics to adult services.<\/jats:p><\/jats:sec>","DOI":"10.1002\/acr.24204","type":"journal-article","created":{"date-parts":[[2020,4,14]],"date-time":"2020-04-14T11:38:50Z","timestamp":1586864330000},"page":"947-954","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Common Functional Ability Score for Young People With Juvenile Idiopathic Arthritis"],"prefix":"10.1002","volume":"73","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9441-5535","authenticated-orcid":false,"given":"Stephanie J. W.","family":"Shoop\u2010Worrall","sequence":"first","affiliation":[{"name":"University of Manchester and Manchester Academic Health Sciences Centre  Manchester UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2438-9973","authenticated-orcid":false,"given":"Martijn A. H.","family":"Oude Voshaar","sequence":"additional","affiliation":[{"name":"University of Twente  Enschede The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janet E.","family":"McDonagh","sequence":"additional","affiliation":[{"name":"University of Manchester and Manchester Academic Health Sciences Centre NIHR Manchester Biomedical Research Centre, and Manchester University Hospital NHS Foundation Trust  Manchester UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mart A. F. J.","family":"Van de Laar","sequence":"additional","affiliation":[{"name":"University of Twente  Enschede The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nico","family":"Wulffraat","sequence":"additional","affiliation":[{"name":"University Medical Center Utrecht and European Reference Network\u2013RITA  Utrecht, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wendy","family":"Thomson","sequence":"additional","affiliation":[{"name":"University of Manchester and Manchester Academic Health Sciences Centre NIHR Manchester Biomedical Research Centre, and Manchester University Hospital NHS Foundation Trust  Manchester UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kimme L.","family":"Hyrich","sequence":"additional","affiliation":[{"name":"University of Manchester and Manchester Academic Health Sciences Centre NIHR Manchester Biomedical Research Centre, and Manchester University Hospital NHS Foundation Trust  Manchester UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Suzanne M. M.","family":"Verstappen","sequence":"additional","affiliation":[{"name":"University of Manchester and Manchester Academic Health Sciences Centre NIHR Manchester Biomedical Research Centre, and Manchester University Hospital NHS Foundation Trust  Manchester UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,6,4]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.1780400703"},{"key":"e_1_2_7_3_1","first-page":"S163","article-title":"The British version of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ)","volume":"19","author":"Nugent J","year":"2001","journal-title":"Clin Exp Rheumatol"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.21834"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/25.2.206"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/acr.20620"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/acr.23877"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.clinpsy.032408.153553"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/00005650-200009002-00007"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-0-387-85461-8"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1177\/014662168300700208"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinepi.2010.04.011"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0092367"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1037\/a0035768"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11136-018-2007-0"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/ken085"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.1790030405"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-2691-6_9"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-2691-6_21"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/bmsp.12078"},{"key":"e_1_2_7_21_1","first-page":"647","article-title":"Detection of differential item functioning using Lagrange Multiplier Tests","volume":"8","author":"Glas CA","year":"1998","journal-title":"Stat Sin"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1177\/014662169501900105"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02294627"},{"key":"e_1_2_7_24_1","first-page":"281","article-title":"Transition of rheumatologic care, from teenager to adult: which health assessment questionnaire can be best used?","volume":"28","author":"Van Pelt PA","year":"2010","journal-title":"Clin Exp Rheumatol"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2010.08.003"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(11)60512-6"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.20529"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/40.11.1274"},{"key":"e_1_2_7_29_1","first-page":"150","article-title":"Minimal clinically important differences of the Childhood Health\u00a0Assessment Questionnaire","volume":"32","author":"Brunner HI","year":"2005","journal-title":"J Rheumatol"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.3899\/jrheum.080479"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.3899\/jrheum.100930"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12969-018-0251-z"}],"container-title":["Arthritis Care &amp; Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Facr.24204","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/acr.24204","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/acr.24204","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/acr.24204","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T17:32:22Z","timestamp":1759426342000},"score":1,"resource":{"primary":{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/10.1002\/acr.24204"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,4]]},"references-count":31,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2021,7]]}},"alternative-id":["10.1002\/acr.24204"],"URL":"https:\/\/doi.org\/10.1002\/acr.24204","archive":["Portico"],"relation":{},"ISSN":["2151-464X","2151-4658"],"issn-type":[{"type":"print","value":"2151-464X"},{"type":"electronic","value":"2151-4658"}],"subject":[],"published":{"date-parts":[[2021,6,4]]},"assertion":[{"value":"2019-12-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-03-31","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-06-04","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}