{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T00:29:59Z","timestamp":1792801799374,"version":"4.5.0"},"reference-count":14,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,6,22]],"date-time":"2024-06-22T00:00:00Z","timestamp":1719014400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,6,22]],"date-time":"2024-06-22T00:00:00Z","timestamp":1719014400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"The Foundation for Advancement of Chiropractic Research and Postgraduate Education","award":["A2856"],"award-info":[{"award-number":["A2856"]}]},{"name":"The Danish Rheumatism Association","award":["R164-A5421"],"award-info":[{"award-number":["R164-A5421"]}],"id":[{"id":"https:\/\/ror.org\/03xqpdg50","id-type":"ROR","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100006356","name":"University of Southern Denmark","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100006356","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Res Notes"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To investigate symptom trajectories in chiropractic patients with lumbar spinal stenosis (LSS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Patients diagnosed with LSS were recruited from chiropractic clinics and self-reported questionnaires were collected at baseline and 1-year follow-up. Patients received weekly text messages about low back pain (LBP) and leg symptoms for 1\u00a0year. Group-based trajectory modelling was performed to identify symptom trajectory groups. The groups were compared based on patient characteristics, LBP and leg pain intensity, Oswestry Disability Index (ODI) and Zurich Claudication Questionnaire (ZCQ).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 90 patients were included in the analysis. A three-group trajectory model was chosen: \u2018improving\u2019 (16%), \u2018fluctuating\/improving\u2019 (30%), and \u2018persistent\u2019 (54%). The \u2018persistent\u2019 group had a higher proportion of women [71% (95% CI 57\u201382%)] than the \u2018improving\u2019 group 29% (95% CI 11\u201356%), and a higher ODI score at both baseline [34.2 (95% CI 29.7\u201338.8) vs. 22.8 (16.4\u201329.1)] and 1-year follow-up [28.1 (95% CI 23.2\u201333.0) vs. 4.8 (0.1\u20139.4)]. Similar differences were observed for ZCQ symptom and function scores.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Pain symptoms in people with LSS followed distinctly different trajectories. Half of the sample had a pattern of consistently severe symptoms over a year, while the other half either improved rapidly or experienced fluctuating symptoms with some improvement.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s13104-024-06840-6","type":"journal-article","created":{"date-parts":[[2024,6,22]],"date-time":"2024-06-22T12:02:09Z","timestamp":1719057729000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Pain trajectories over 12\u00a0months following conservative care consultation in patients with lumbar spinal stenosis"],"prefix":"10.1186","volume":"17","author":[{"given":"Rikke K.","family":"Jensen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisbeth","family":"Hartvigsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alice","family":"Kongsted","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,6,22]]},"reference":[{"issue":"13","key":"6840_CR1","doi-asserted-by":"publisher","first-page":"1259","DOI":"10.1001\/jama.2010.338","volume":"303","author":"RA Deyo","year":"2010","unstructured":"Deyo RA, Mirza SK, Martin BI, Kreuter W, Goodman DC, Jarvik JG. Trends, major medical complications, and charges associated with surgery for lumbar spinal stenosis in older adults. JAMA. 2010;303(13):1259\u201365.","journal-title":"JAMA"},{"issue":"9","key":"6840_CR2","doi-asserted-by":"publisher","first-page":"1015","DOI":"10.1016\/j.jpain.2021.03.147","volume":"22","author":"A Bussieres","year":"2021","unstructured":"Bussieres A, Cancelliere C, Ammendolia C, Comer CM, Zoubi FA, Chatillon CE, et al. Non-surgical interventions for lumbar spinal stenosis leading to neurogenic claudication: a clinical practice guideline. J Pain. 2021;22(9):1015\u201339.","journal-title":"J Pain"},{"issue":"6","key":"6840_CR3","doi-asserted-by":"publisher","first-page":"1386","DOI":"10.1007\/s00586-019-05987-2","volume":"28","author":"R Rousing","year":"2019","unstructured":"Rousing R, Jensen RK, Fruensgaard S, Strom J, Brogger HA, Degn JDM, et al. Danish national clinical guidelines for surgical and nonsurgical treatment of patients with lumbar spinal stenosis. Eur Spine J. 2019;28(6):1386\u201396.","journal-title":"Eur Spine J"},{"issue":"7","key":"6840_CR4","doi-asserted-by":"publisher","first-page":"734","DOI":"10.1016\/j.spinee.2012.11.059","volume":"13","author":"DS Kreiner","year":"2013","unstructured":"Kreiner DS, Shaffer WO, Baisden JL, Gilbert TJ, Summers JT, Toton JF, et al. An evidence-based clinical guideline for the diagnosis and treatment of degenerative lumbar spinal stenosis (update). Spine J. 2013;13(7):734\u201343.","journal-title":"Spine J"},{"issue":"1","key":"6840_CR5","doi-asserted-by":"publisher","first-page":"220","DOI":"10.1186\/s12891-016-1071-2","volume":"17","author":"A Kongsted","year":"2016","unstructured":"Kongsted A, Kent P, Axen I, Downie AS, Dunn KM. What have we learned from ten years of trajectory research in low back pain? 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Lancet. 2018;391(10137):2356\u201367.","journal-title":"Lancet"},{"issue":"1","key":"6840_CR8","doi-asserted-by":"publisher","first-page":"839","DOI":"10.1186\/s12891-023-06950-5","volume":"24","author":"JJ Young","year":"2023","unstructured":"Young JJ, Kongsted A, Hartvigsen J, Ammendolia C, Jensen RK. Similar improvements in patient-reported outcomes for non-specific low back pain patients with and without lumbar spinal stenosis symptoms following a structured education and exercise therapy program. BMC Musculoskelet Disord. 2023;24(1):839.","journal-title":"BMC Musculoskelet Disord"},{"key":"6840_CR9","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.h6234","volume":"352","author":"J Lurie","year":"2016","unstructured":"Lurie J, Tomkins-Lane C. Management of lumbar spinal stenosis. BMJ. 2016;352: h6234.","journal-title":"BMJ"},{"issue":"1","key":"6840_CR10","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1016\/j.jphys.2022.11.001","volume":"69","author":"A Smith","year":"2023","unstructured":"Smith A, Dunn KM. Research Note: Deriving latent trajectories in health research. J Physiother. 2023;69(1):61\u20134.","journal-title":"J Physiother"},{"issue":"1","key":"6840_CR11","doi-asserted-by":"publisher","first-page":"55","DOI":"10.1016\/j.jphys.2016.05.018","volume":"63","author":"A Kongsted","year":"2017","unstructured":"Kongsted A, Nielsen AM. Latent class analysis in health research. J Physiother. 2017;63(1):55\u20138.","journal-title":"J Physiother"},{"key":"6840_CR12","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.n1581","volume":"373","author":"RK Jensen","year":"2021","unstructured":"Jensen RK, Harhangi BS, Huygen F, Koes B. Lumbar spinal stenosis. BMJ. 2021;373: n1581.","journal-title":"BMJ"},{"issue":"3","key":"6840_CR13","doi-asserted-by":"publisher","first-page":"150","DOI":"10.5387\/fms.2021-22","volume":"67","author":"Y Fushimi","year":"2021","unstructured":"Fushimi Y, Otani K, Tominaga R, Nakamura M, Sekiguchi M, Konno SI. The association between clinical symptoms of lumbar spinal stenosis and MRI axial imaging findings. Fukushima J Med Sci. 2021;67(3):150\u201360.","journal-title":"Fukushima J Med Sci"},{"key":"6840_CR14","unstructured":"Danish National Committee on Health Research Ethics. [Updated Feb 2 2024]. https:\/\/researchethics.dk\/. Accessed 9 Apr 2024."}],"container-title":["BMC Research Notes"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s13104-024-06840-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s13104-024-06840-6\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s13104-024-06840-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,22]],"date-time":"2024-06-22T12:02:23Z","timestamp":1719057743000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmcresnotes.biomedcentral.com\/articles\/10.1186\/s13104-024-06840-6"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,6,22]]},"references-count":14,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2024,12]]}},"alternative-id":["6840"],"URL":"https:\/\/doi.org\/10.1186\/s13104-024-06840-6","relation":{},"ISSN":["1756-0500"],"issn-type":[{"value":"1756-0500","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,6,22]]},"assertion":[{"value":"10 April 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"19 June 2024","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"22 June 2024","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"According to Danish regulations, ethical approval was not required for this project, as verified by the Regional Committees on Health Research Ethics for Southern Denmark, reference number S-20172000-148 [\n                      \n                      ]. Participants provided written informed consent to participate in the study. The handling and storage of personal data was in accordance with the standards of the Danish Data Protection Agency, via the joint registration system of the University of Southern Denmark, registration number 2015-57-0008, file number 18\/27194.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"RKJ has a part-time research position at the Chiropractic Knowledge Hub, funded by the Foundation for Chiropractic Research and Post Graduate Education. LH is a partner in one of the chiropractic clinics that collected the data. AK is supported by an unrestricted grant from the Foundation for Chiropractic Research and Post Graduate Education.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"174"}}