{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T18:03:34Z","timestamp":1791223414508,"version":"4.1.0"},"reference-count":32,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T00:00:00Z","timestamp":1756598400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100004334","name":"Merck","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004334","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["ard.eular.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Annals of the Rheumatic Diseases"],"published-print":{"date-parts":[[2026,2]]},"DOI":"10.1016\/j.ard.2025.08.027","type":"journal-article","created":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T11:30:05Z","timestamp":1758799805000},"page":"297-307","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":5,"title":["Development and validation of a Disease Activity index for PSoriatic Arthritis based on 44 joints (DAPSA44)"],"prefix":"10.1016","volume":"85","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9336-0416","authenticated-orcid":false,"given":"Dafne","family":"Capelusnik","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2309-5837","authenticated-orcid":false,"given":"Clementina","family":"Lopez-Medina","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5781-158X","authenticated-orcid":false,"given":"D\u00e9sir\u00e9e","family":"van der Heijde","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2108-0030","authenticated-orcid":false,"given":"Daniel","family":"Aletaha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4302-8877","authenticated-orcid":false,"given":"Josef","family":"Smolen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2246-1986","authenticated-orcid":false,"given":"Anna","family":"Molto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8899-9087","authenticated-orcid":false,"given":"Sofia","family":"Ramiro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"1","key":"10.1016\/j.ard.2025.08.027_bib0001","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1136\/ard.2010.133645","article-title":"The Assessment of SpondyloArthritis International Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general","volume":"70","author":"Rudwaleit","year":"2011","journal-title":"Ann Rheum Dis"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0002","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1016\/j.berh.2019.02.010","article-title":"Peripheral spondyloarthritis: concept, diagnosis and treatment","volume":"32","author":"Molto","year":"2018","journal-title":"Best Pract Res Clin Rheumatol"},{"issue":"6","key":"10.1016\/j.ard.2025.08.027_bib0003","doi-asserted-by":"crossref","first-page":"1342","DOI":"10.1016\/j.semarthrit.2021.07.021","article-title":"The ASAS-OMERACT core domain set for axial spondyloarthritis","volume":"51","author":"Navarro-Comp\u00e1n","year":"2021","journal-title":"Semin Arthritis Rheum"},{"issue":"6","key":"10.1016\/j.ard.2025.08.027_bib0004","doi-asserted-by":"crossref","first-page":"763","DOI":"10.1136\/annrheumdis-2022-222747","article-title":"Instrument selection for the ASAS core outcome set for axial spondyloarthritis","volume":"82","author":"Navarro-Comp\u00e1n","year":"2023","journal-title":"Ann Rheum Dis"},{"issue":"1","key":"10.1016\/j.ard.2025.08.027_bib0005","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1136\/ard.2008.094870","article-title":"Development of an ASAS-endorsed disease activity score (ASDAS) in patients with ankylosing spondylitis","volume":"68","author":"Lukas","year":"2009","journal-title":"Ann Rheum Dis"},{"issue":"8","key":"10.1016\/j.ard.2025.08.027_bib0006","doi-asserted-by":"crossref","first-page":"1441","DOI":"10.1136\/ard.2009.122259","article-title":"Application of the DAREA\/DAPSA score for assessment of disease activity in psoriatic arthritis","volume":"69","author":"Schoels","year":"2010","journal-title":"Ann Rheum Dis"},{"issue":"1","key":"10.1016\/j.ard.2025.08.027_bib0007","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1136\/ard.2008.102053","article-title":"Defining minimal disease activity in psoriatic arthritis: a proposed objective target for treatment","volume":"69","author":"Coates","year":"2010","journal-title":"Ann Rheum Dis"},{"issue":"1","key":"10.1016\/j.ard.2025.08.027_bib0008","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1136\/annrheumdis-2017-211734","article-title":"Treating axial spondyloarthritis and peripheral spondyloarthritis, especially psoriatic arthritis, to target: 2017 update of recommendations by an international task force","volume":"77","author":"Smolen","year":"2018","journal-title":"Ann Rheum Dis"},{"issue":"8","key":"10.1016\/j.ard.2025.08.027_bib0009","doi-asserted-by":"crossref","first-page":"1324","DOI":"10.1016\/j.ard.2025.02.011","article-title":"Evaluation of instruments assessing peripheral arthritis in spondyloarthritis: an analysis of the ASAS-perSpA Study","volume":"84","author":"Capelusnik","year":"2024","journal-title":"Ann Rheum Dis"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0010","doi-asserted-by":"crossref","DOI":"10.1136\/rmdopen-2025-005525","article-title":"Measurement properties of disease activity instruments in peripheral spondyloarthritis: a post-hoc analysis of the CRESPA trial","volume":"11","author":"L\u00f3pez-Medina","year":"2025","journal-title":"RMD Open"},{"issue":"2","key":"10.1016\/j.ard.2025.08.027_bib0011","doi-asserted-by":"crossref","first-page":"148","DOI":"10.1093\/rheumatology\/39.2.148","article-title":"Development of a disease activity index for the assessment of reactive arthritis (DAREA)","volume":"39","author":"Eberl","year":"2000","journal-title":"Rheumatology (Oxford)"},{"issue":"8","key":"10.1016\/j.ard.2025.08.027_bib0012","doi-asserted-by":"crossref","first-page":"996","DOI":"10.3899\/jrheum.181089","article-title":"Endorsement of the 66\/68 joint count for the measurement of musculoskeletal disease activity: OMERACT 2018 psoriatic arthritis workshop report","volume":"46","author":"Duarte-Garc\u00eda","year":"2019","journal-title":"J Rheumatol"},{"issue":"12","key":"10.1016\/j.ard.2025.08.027_bib0013","doi-asserted-by":"crossref","first-page":"1736","DOI":"10.1136\/annrheumdis-2018-213463","article-title":"Can disease activity in patients with psoriatic arthritis be adequately assessed by a modified Disease Activity index for PSoriatic Arthritis (DAPSA) based on 28 joints?","volume":"77","author":"Michelsen","year":"2018","journal-title":"Ann Rheum Dis"},{"issue":"1","key":"10.1016\/j.ard.2025.08.027_bib0014","doi-asserted-by":"crossref","DOI":"10.1136\/rmdopen-2020-001450","article-title":"Prevalence and distribution of peripheral musculoskeletal manifestations in spondyloarthritis including psoriatic arthritis: results of the worldwide, cross-sectional ASAS-PerSpA study","volume":"7","author":"L\u00f3pez-Medina","year":"2021","journal-title":"RMD Open"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0015","doi-asserted-by":"crossref","DOI":"10.1136\/rmdopen-2021-001728","article-title":"Identification of clinical phenotypes of peripheral involvement in patients with spondyloarthritis, including psoriatic arthritis: a cluster analysis in the worldwide ASAS-PerSpA study","volume":"7","author":"L\u00f3pez-Medina","year":"2021","journal-title":"RMD Open"},{"issue":"12","key":"10.1016\/j.ard.2025.08.027_bib0016","first-page":"2286","article-title":"A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index","volume":"21","author":"Garrett","year":"1994","journal-title":"J Rheumatol"},{"issue":"5","key":"10.1016\/j.ard.2025.08.027_bib0017","doi-asserted-by":"crossref","first-page":"811","DOI":"10.1136\/annrheumdis-2015-207507","article-title":"Disease activity in psoriatic arthritis (PsA): defining remission and treatment success using the DAPSA score","volume":"75","author":"Schoels","year":"2016","journal-title":"Ann Rheum Dis"},{"key":"10.1016\/j.ard.2025.08.027_bib0018","series-title":"Foundations of clinical research: applications to Practice","first-page":"912","author":"Portney","year":"2015"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0019","doi-asserted-by":"crossref","first-page":"276","DOI":"10.11613\/BM.2012.031","article-title":"Interrater reliability: the kappa statistic","volume":"22","author":"McHugh","year":"2012","journal-title":"Biochem Med (Zagreb)"},{"issue":"8476","key":"10.1016\/j.ard.2025.08.027_bib0020","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/S0140-6736(86)90837-8","article-title":"Statistical methods for assessing agreement between two methods of clinical measurement","volume":"1","author":"Bland","year":"1986","journal-title":"Lancet"},{"issue":"5","key":"10.1016\/j.ard.2025.08.027_bib0021","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1002\/anr.1780320504","article-title":"A simplified twenty-eight-joint quantitative articular index in rheumatoid arthritis","volume":"32","author":"Fuchs","year":"1989","journal-title":"Arthritis Rheum"},{"issue":"11","key":"10.1016\/j.ard.2025.08.027_bib0022","doi-asserted-by":"crossref","first-page":"916","DOI":"10.1136\/ard.49.11.916","article-title":"Judging disease activity in clinical practice in rheumatoid arthritis: first step in the development of a disease activity score","volume":"49","author":"van der Heijde","year":"1990","journal-title":"Ann Rheum Dis"},{"issue":"12","key":"10.1016\/j.ard.2025.08.027_bib0023","first-page":"2281","article-title":"A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Spondylitis Functional Index","volume":"21","author":"Calin","year":"1994","journal-title":"J Rheumatol"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0024","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/0168-8510(90)90421-9","article-title":"EuroQol\u2013a new facility for the measurement of health-related quality of life","volume":"16","year":"1990","journal-title":"Health Policy"},{"issue":"5","key":"10.1016\/j.ard.2025.08.027_bib0025","doi-asserted-by":"crossref","first-page":"830","DOI":"10.1136\/annrheumdis-2013-203967","article-title":"Development of a health index in patients with ankylosing spondylitis (ASAS HI): final result of a global initiative based on the ICF guided by ASAS","volume":"74","author":"Kiltz","year":"2015","journal-title":"Ann Rheum Dis"},{"key":"10.1016\/j.ard.2025.08.027_bib0026","series-title":"Statistical power analysis for the behavioral sciences","author":"Cohen","year":"1988"},{"key":"10.1016\/j.ard.2025.08.027_bib0027","doi-asserted-by":"crossref","first-page":"k4817","DOI":"10.1136\/bmj.k4817","article-title":"When continuous outcomes are measured using different scales: guide for meta-analysis and interpretation","volume":"364","author":"Murad","year":"2019","journal-title":"BMJ"},{"issue":"6","key":"10.1016\/j.ard.2025.08.027_bib0028","doi-asserted-by":"crossref","first-page":"1320","DOI":"10.1016\/j.semarthrit.2021.08.011","article-title":"The evolution of instrument selection for inclusion in core outcome sets at OMERACT: Filter 2.2","volume":"51","author":"Maxwell","year":"2021","journal-title":"Semin Arthritis Rheum"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib32","first-page":"69","article-title":"Statistics corner: A guide to appropiate use of correlation coefficient in medical research","volume":"24","author":"Mukaka","year":"2012","journal-title":"Malawa Med J"},{"issue":"7","key":"10.1016\/j.ard.2025.08.027_bib0029","doi-asserted-by":"crossref","first-page":"1302","DOI":"10.1136\/annrheumdis-2014-207235","article-title":"A psychometric analysis of outcome measures in peripheral spondyloarthritis","volume":"75","author":"Turina","year":"2016","journal-title":"Ann Rheum Dis"},{"issue":"3","key":"10.1016\/j.ard.2025.08.027_bib0030","doi-asserted-by":"crossref","first-page":"256","DOI":"10.3899\/jrheum.210075","article-title":"Performance of 3 composite measures for disease activity in peripheral spondyloarthritis","volume":"49","author":"Beckers","year":"2022","journal-title":"J Rheumatol"},{"issue":"5","key":"10.1016\/j.ard.2025.08.027_bib0031","doi-asserted-by":"crossref","first-page":"2043","DOI":"10.1093\/rheumatology\/keab638","article-title":"Individual-level and country-level socio-economic factors and health outcomes in spondyloarthritis: analysis of the ASAS-perSpA study","volume":"61","author":"Capelusnik","year":"2022","journal-title":"Rheumatology (Oxford)"}],"container-title":["Annals of the Rheumatic Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0003496725043262?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0003496725043262?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T04:27:00Z","timestamp":1779942420000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0003496725043262"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2]]},"references-count":32,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["S0003496725043262"],"URL":"https:\/\/doi.org\/10.1016\/j.ard.2025.08.027","relation":{},"ISSN":["0003-4967"],"issn-type":[{"value":"0003-4967","type":"print"}],"subject":[],"published":{"date-parts":[[2026,2]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Development and validation of a Disease Activity index for PSoriatic Arthritis based on 44 joints (DAPSA44)","name":"articletitle","label":"Article Title"},{"value":"Annals of the Rheumatic Diseases","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ard.2025.08.027","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2025 The Author(s). Published by Elsevier B.V. on behalf of European Alliance of Associations for Rheumatology (EULAR).","name":"copyright","label":"Copyright"}]}}