{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T06:00:11Z","timestamp":1789192811821,"version":"build-2803163510"},"reference-count":16,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2025,8,7]],"date-time":"2025-08-07T00:00:00Z","timestamp":1754524800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/100004319","name":"Pfizer","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004319","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000738","name":"U.S. Department of Veterans Affairs","doi-asserted-by":"publisher","award":["ORD CX002430"],"award-info":[{"award-number":["ORD CX002430"]}],"id":[{"id":"10.13039\/100000738","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["K24 AR080840"],"award-info":[{"award-number":["K24 AR080840"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["P30 AR072579"],"award-info":[{"award-number":["P30 AR072579"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["T32 AR007611"],"award-info":[{"award-number":["T32 AR007611"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["K12 TR005104"],"award-info":[{"award-number":["K12 TR005104"]}],"id":[{"id":"10.13039\/100000069","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":[[2025,11]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Fatigue is a prevalent and debilitating symptom for patients with rheumatoid arthritis (RA). Although patients and rheumatologists often attribute fatigue to inflammation, other factors such as sleep disturbances are frequently overlooked. This study aims to explore the relationship between subjective (self\u2010reported) and objective (actigraphy based) sleep parameters and self\u2010reported fatigue in patients with RA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This cross\u2010sectional analysis included data from 48 adult patients with RA from a single academic rheumatology practice. Sleep data were obtained daily over 14 days with actigraphy (objective) and the Karolinska Sleep Diary (subjective). Fatigue was assessed using the Patient\u2010Reported Outcome Measurement Information System (PROMIS) fatigue computerized adaptive test. Spearman's correlations and linear regression analyses were used to examine associations between sleep parameters and fatigue, adjusting for swollen joint count, pain intensity, and symptoms of depression.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Subjective sleep parameters showed significant correlations with PROMIS fatigue. Longer total sleep time (\u03c1 = \u22120.4,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01), higher sleep efficiency (\u03c1 = \u22120.42,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01), and better sleep quality (\u03c1 = \u22120.5,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; 0.01) were associated with lower levels of fatigue. Objective actigraphy\u2010based sleep parameters were not significantly associated with PROMIS fatigue. Separate linear regression models demonstrated that each subjective sleep parameter remained significantly associated with fatigue after adjusting for covariates.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Self\u2010reported poor sleep duration, efficiency, and quality were significantly associated with fatigue in patients with RA, whereas objective actigraphy\u2010based sleep parameters were not, supporting the integration of self\u2010reported assessment of sleep disturbances into RA treatment plans to improve patient outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/acr.25579","type":"journal-article","created":{"date-parts":[[2025,6,2]],"date-time":"2025-06-02T03:13:42Z","timestamp":1748834022000},"page":"1368-1373","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Sleep Matters: Exploring the Link Between Sleep Disturbances and Fatigue in Rheumatoid Arthritis"],"prefix":"10.1002","volume":"77","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-4701-6452","authenticated-orcid":false,"given":"Natalia V.","family":"Chalupczak","sequence":"first","affiliation":[{"name":"Chicago Medical School, Rosalind Franklin University  North Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0046-5452","authenticated-orcid":false,"given":"Burcu","family":"Aydemir","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ariel","family":"Isaacs","sequence":"additional","affiliation":[{"name":"University of Missouri School of Medicine  Columbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lutfiyya N.","family":"Muhammad","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8881-9664","authenticated-orcid":false,"given":"Jing","family":"Song","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn J.","family":"Reid","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Grimaldi","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary","family":"Carns","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathleen","family":"Dennis\u2010Aren","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dorothy D.","family":"Dunlop","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beth I.","family":"Wallace","sequence":"additional","affiliation":[{"name":"University of Michigan and VA Ann Arbor Healthcare System  Ann Arbor"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Phyllis C.","family":"Zee","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2105-3393","authenticated-orcid":false,"given":"Yvonne C.","family":"Lee","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine  Chicago Illinois"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,8,7]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1136\/rmdopen-2019-001084"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.21450"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/kez346"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/acr.23617"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/clinpract12040062"},{"issue":"2","key":"e_1_2_7_7_1","first-page":"192","article-title":"Patients\u2010 and physicians\u2010 priorities for improvement. The case of rheumatic diseases","volume":"35","author":"Silva JAP","year":"2010","journal-title":"Acta Reumatol Port"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1186\/s41927-024-00405-7"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.27584"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.2466\/pms.1994.79.1.287"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1186\/s41687-019-0105-6"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/acr.22577"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.2196\/32825"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.5665\/sleep.1742"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.5665\/sleep.5658"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bbi.2008.01.011"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.3899\/jrheum.220046"}],"container-title":["Arthritis Care &amp; Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/acr.25579","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,24]],"date-time":"2025-10-24T08:55:07Z","timestamp":1761296107000},"score":1,"resource":{"primary":{"URL":"https:\/\/acrjournals.onlinelibrary.wiley.com\/doi\/10.1002\/acr.25579"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,7]]},"references-count":16,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["10.1002\/acr.25579"],"URL":"https:\/\/doi.org\/10.1002\/acr.25579","archive":["Portico"],"relation":{},"ISSN":["2151-464X","2151-4658"],"issn-type":[{"value":"2151-464X","type":"print"},{"value":"2151-4658","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,8,7]]},"assertion":[{"value":"2024-10-25","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-05-21","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-07","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}