{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T13:43:23Z","timestamp":1793195003646,"version":"4.5.0"},"reference-count":44,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2025,7,25]],"date-time":"2025-07-25T00:00:00Z","timestamp":1753401600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01AG069891"],"award-info":[{"award-number":["R01AG069891"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"name":"University of Washington Clinical Learning, Evidence, and Research"},{"name":"Center for Musculoskeletal Research"},{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["P30AR072572"],"award-info":[{"award-number":["P30AR072572"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,2,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study describes the enrollment and baseline characteristics of participants in the Lumbar Stenosis Prognostic Subgroups for Personalizing Care and Treatment Study (PROSPECTS) cohort and explores subgroups of patients presenting for nonoperative care.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Cross-sectional study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting and subjects<\/jats:title>\n                    <jats:p>We enrolled adults \u226550\u2009years of age initiating nonoperative care for symptomatic lumbar spinal stenosis. We excluded those with serious spinal pathology, conditions limiting ambulation, and prior or planned lumbar surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We collected demographics, the Patient-Reported Outcomes Measurement Information System (PROMIS) 29, pain intensity, Oswestry Disability Index, Swiss Spinal Stenosis Questionnaire, chronicity of symptoms, pain sites, comorbidities, falls, and opioid use. We used descriptive statistics to characterize the sample and latent class analysis to derive subgroups with distinct phenotypes. The best model was selected on the basis of model fit statistics, class separation, and clinical interpretability.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We enrolled 598 participants. The mean age was 67 (SD\u2009=\u20099), and 61% were female. Back and leg pain had been present for \u22651\u2009year in 65% of participants. Multiple pain sites were common, with a mean of 4.3 sites (SD\u2009=\u20092.2), and a majority of patients had multiple comorbidities (54%). We selected a 4-class solution as the best model from the latent class analysis. These phenotypes were described as (1) \u201chigh pain impact, low psychosocial features\u201d (n\u2009=\u2009233; 39%), (2) \u201cmild pain impact, low psychosocial features\u201d (n\u2009=\u2009218; 36%), (3) \u201chigh pain impact, complex health needs\u201d (n\u2009=\u200995; 16%), and (4) \u201cacute, intermittent, moderate\u2013severe leg pain with high pain impact\u201d (n\u2009=\u200952; 9%).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These phenotypes reflect distinct profiles that could inform health needs and patient-centered care. Future studies should examine longitudinal outcomes to establish their clinical utility and prognostic value.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/pm\/pnaf099","type":"journal-article","created":{"date-parts":[[2025,7,24]],"date-time":"2025-07-24T11:42:15Z","timestamp":1753357335000},"page":"177-188","source":"Crossref","is-referenced-by-count":3,"title":["Phenotypes of patients with symptomatic lumbar spinal stenosis presenting for nonoperative care: baseline data from the Lumbar Stenosis Prognostic Subgroups for Personalizing Care and Treatment Study (PROSPECTS)"],"prefix":"10.1093","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0782-5999","authenticated-orcid":false,"given":"Sean D","family":"Rundell","sequence":"first","affiliation":[{"name":"Department of Rehabilitation Medicine, University of Washington , Seattle, WA,","place":["United States"]},{"name":"Department of Health Systems and Population Health, University of Washington , Seattle, 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L","family":"Friedly","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Medicine, University of Washington , Seattle, WA,","place":["United States"]},{"name":"Clinical Learning, Evidence, and Research Center, University of Washington , Seattle, WA,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maggie E","family":"Horn","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University , Durham, NC,","place":["United States"]},{"name":"Department of Population Health Sciences, Duke University , Durham, NC,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pradeep","family":"Suri","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Medicine, University of Washington , Seattle, WA,","place":["United States"]},{"name":"Clinical Learning, Evidence, and Research Center, University of Washington , Seattle, 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