{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T06:49:17Z","timestamp":1789886957115,"version":"4.0.1"},"reference-count":50,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2015,10,28]],"date-time":"2015-10-28T00:00:00Z","timestamp":1445990400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001729","name":"Swedish Foundation for Strategic Research","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100001729","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100004359","name":"Swedish Research Council","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Swedish Combine Programme"},{"name":"AstraZeneca"},{"name":"Innovative Medicines Initiative (BTCure)"},{"DOI":"10.13039\/501100004348","name":"Stockholm County Council","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100004348","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arthritis &amp; Rheumatology"],"published-print":{"date-parts":[[2015,11]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate risk factors for acute coronary syndrome (ACS) in patients with new\u2010onset rheumatoid arthritis (RA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We performed a nested case\u2013control study of patients with incident RA included in the Epidemiological Investigation of RA study. Cases with ACS were identified using Swedish national health registers and matched with up to 5 controls without ACS, based on incidence density\u2013based sampling. Information on potential exposures (clinical disease activity, serologic features, genetic markers, comorbidities, pharmacotherapies, and sick leave) was collected from medical charts and register\u2010based sources.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We identified 138 cases and 624 controls. Smoking, history of myocardial infarction, and &gt;50 days of sick leave the year following RA onset were associated with an increased risk of ACS. Area under the curve measurements of C\u2010reactive protein level, erythrocyte sedimentation rate, Disease Activity Score in 28 joints (DAS28), and global health in the upper tertile during the first year and the complete followup period were both strongly associated with an increased risk of ACS. Treatment with disease\u2010modifying antirheumatic drugs did not alter the ACS risk, nor did the presence of rheumatoid factor (RF) or shared epitope alleles, whereas high anti\u2013citrullinated protein antibody (ACPA) levels were borderline significantly associated with ACS risk.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In this study of risk factors for ACS in incident RA, clinical markers of inflammatory activity, disease activity, and total number of days of sick leave and disability pension during the first year following RA onset were identified as ACS risk factors. We found no association with RF, which was previously linked to cardiovascular disease risk in RA, but there was a borderline significant association with high ACPA levels.<\/jats:p><\/jats:sec>","DOI":"10.1002\/art.39267","type":"journal-article","created":{"date-parts":[[2015,7,2]],"date-time":"2015-07-02T10:11:29Z","timestamp":1435831889000},"page":"2845-2854","source":"Crossref","is-referenced-by-count":50,"title":["Risk Factors for the Rapid Increase in Risk of Acute Coronary Events in Patients With New\u2010Onset Rheumatoid Arthritis: A Nested Case\u2013Control Study"],"prefix":"10.1002","volume":"67","author":[{"given":"\u00c4ngla","family":"Mantel","sequence":"first","affiliation":[{"name":"Karolinska Institute Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie","family":"Holmqvist","sequence":"additional","affiliation":[{"name":"Karolinska Institute Stockholm 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