{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T20:20:43Z","timestamp":1790108443249,"version":"4.0.1"},"reference-count":71,"publisher":"BMJ","issue":"4","funder":[{"name":"The Research Foundation, Rigshospitalet"},{"name":"The Research Foundation, Rigshospitalet"},{"name":"Danish Health Foundation"},{"DOI":"10.13039\/501100003035","name":"Aase og Ejnar Danielsens Fond","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003035","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2019,3,6]]},"published-print":{"date-parts":[[2019,4]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Some patients with mild traumatic brain injury (mTBI) experience persistent postconcussive symptoms, influencing the ability to work. This study assessed associations between mTBI and labour market attachment (up to 5 years postinjury) in patients with different premorbid characteristics.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design and setting<\/jats:title>\n                    <jats:p>Danish national cohort study with 5-year register follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>We included hospital admitted patients between 18 and 60 years diagnosed with mTBI (International Classification of Diseases, version 10 diagnosis S06.0) (n=19 732). For each patient, one control was selected matched on age, gender and municipality (n=18 640).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Primary outcome measure<\/jats:title>\n                    <jats:p>Primary outcome was \u2018not attending ordinary work\u2019, and premorbid risk factors were cohabitation status, education, ethnicity, gender, age and comorbidities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The odds of not attending ordinary work increased from 6 months to 5 years. The highest increased odds (approximately twice as high for patients) of not attending ordinary work at 5 years were found in the highest educational group (OR 2.15, 95%\u2009CI 1.78 to 2.59), for patients of non-Danish origin (OR 1.98, 95%\u2009CI 1.52 to 2.57), for patients between 30 and 39 years (OR 1.93, 95%\u2009CI 1.68 to 1.23) and for patients with somatic comorbidities (OR 1.81, 95%\u2009CI 1.38 to 2.37). Contrary to expectations, we did not find higher odds in patients with psychiatric diagnoses (OR 1.12, 95%\u2009CI 0.76 to 1.60).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Important premorbid characteristics for lower labour market participation after mTBI were higher education, non-Danish origin, age 30\u201339 years and having somatic comorbidities. Demographic and health-related variables should be considered when assessing patients with mTBI at risk of long-term sickness absence.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"NCT03214432\" ext-link-type=\"clintrialgov\" specific-use=\"clinicaltrial results\">NCT03214432<\/jats:ext-link>\n                      ; Results.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2018-027297","type":"journal-article","created":{"date-parts":[[2023,3,15]],"date-time":"2023-03-15T02:13:16Z","timestamp":1678846396000},"page":"e027297","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":8,"title":["Premorbid risk factors influencing labour market attachment after mild traumatic brain injury: a national register study with long-term follow-up"],"prefix":"10.1136","volume":"9","clinical-trial-number":[{"clinical-trial-number":"nct03214432","registry":"10.18810\/clinical-trials-gov","type":"results"},{"clinical-trial-number":"nct03214432","registry":"10.18810\/clinical-trials-gov"}],"author":[{"given":"Heidi Jeannet","family":"Graff","sequence":"first","affiliation":[{"name":"Department of Anaesthesia, Centre of Head and Orthopaedics, University Hospital Rigshospitalet, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Volkert","family":"Siersma","sequence":"additional","affiliation":[{"name":"Department of Public Health, The Research Unit for General Practice and Section of General Practice, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne","family":"M\u00f8ller","sequence":"additional","affiliation":[{"name":"Department of Occupational Medicine and Social 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