{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T05:40:44Z","timestamp":1773294044195,"version":"3.50.1"},"reference-count":42,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Obsessive-compulsive disorder (OCD) includes a wide range of symptoms and is often associated with comorbidities. Although psychiatric involvement may be an early manifestation of Sj\u00f6gren\u2019s syndrome (SS), only a few studies have demonstrated the relationship between OCD and SS. This is a nationwide cohort study identifying the risk of SS in OCD patients. We studied a longitudinal health insurance database for the period from 1999 to 2013. The study group was OCD patients with at least three outpatient visits or one hospitalization. The comparison cohort was matched by age and sex, as well as comorbidities. We calculated the risk of Sj\u00f6gren\u2019s syndrome using Cox proportional hazard regression models. We performed a propensity score match for confounders and effect modifiers between the two groups. The propensity score probability was estimated through logistic regression. Primary outcome was the incidental SS. A total of 1678 patients with OCD (49% women, mean age: 35.6 years) and 3356 controls were followed up, resulting in 13,077 and 25,856 person-years, respectively. The hazard ratio for developing SS was 3.31 (95% C.I.: 1.74\u20136.28) in patients with OCD, compared to those without OCD after adjusting for age, sex, and comorbidities. Furthermore, the risk of SS significantly increased over the 2-year follow-up period after OCD diagnosis. We concluded that risk of SS is significantly increased in patients with OCD compared to those without OCD. Clinically, Sj\u00f6gren\u2019s symptoms in OCD patients should be regularly assessed.<\/jats:p>","DOI":"10.3390\/ijerph18115936","type":"journal-article","created":{"date-parts":[[2021,5,31]],"date-time":"2021-05-31T23:33:33Z","timestamp":1622504013000},"page":"5936","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Increased Risk of Sj\u00f6gren\u2019s Syndrome in Patients with Obsessive-Compulsive Disorder: A Nationwide Population-Based Cohort Study"],"prefix":"10.3390","volume":"18","author":[{"given":"Yi-Jung","family":"Chang","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan"},{"name":"College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jui-Cheng","family":"Tseng","sequence":"additional","affiliation":[{"name":"Division of Allergy, Immunology and Rheumatology, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2220-0903","authenticated-orcid":false,"given":"Pui-Ying","family":"Leong","sequence":"additional","affiliation":[{"name":"Division of Allergy, Immunology and Rheumatology, Department of Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan"},{"name":"Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan"},{"name":"Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu-Hsun","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1235-0679","authenticated-orcid":false,"given":"James Cheng-Chung","family":"Wei","sequence":"additional","affiliation":[{"name":"Division of Allergy, Immunology and Rheumatology, Department of Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan"},{"name":"Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan"},{"name":"Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan"},{"name":"Graduate Institute of Integrated Medicine, China Medical University, Taichung 404333, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1983","DOI":"10.1136\/annrheumdis-2014-205375","article-title":"Epidemiology of primary Sjogren\u2019s syndrome: A systematic review and meta-analysis","volume":"74","author":"Qin","year":"2015","journal-title":"Ann. 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