{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T22:14:27Z","timestamp":1793398467140,"version":"4.5.0"},"reference-count":66,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2023,8,22]],"date-time":"2023-08-22T00:00:00Z","timestamp":1692662400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>The Patient-Specific Functional Scale (PSFS) is a patient-reported outcome measure used to assess functional limitations. Recently, the PSFS 2.0 was proposed; this instrument includes an inverse numeric rating scale and an additional list of activities that patients can choose. The aim of this study was to assess the test\u2013retest reliability, measurement error, responsiveness, and minimal important change of the PSFS 2.0 when used by patients with nonspecific neck pain.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Patients with nonspecific neck pain completed a numeric rating scale, the PSFS 2.0, and the Neck Disability Index at baseline and again after 12\u00a0weeks. The Global Perceived Effect (GPE) was also collected at 12\u00a0weeks and used as an anchor. Test\u2013retest measurement was assessed by completion of a second PSFS 2.0 after 1\u00a0week. Measurement error was calculated using a Bland\u2013Altman plot. The receiver operating characteristic method with the anchor (GPE) functions as the reference standard was used for calculating the minimal important change.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>One hundred patients were included, with 5 lost at follow-up. No floor and ceiling effects were reported. In the test\u2013retest analysis, the mean difference was 0.15 (4.70 at first test and 4.50 at second test). The ICC (mixed models) was 0.95, indicating high agreement (95% CI\u2009=\u20090.92\u20130.97). For measurement error, the upper and lower limits of agreement were 0.95 and\u2009\u22121.25 points, respectively, with a smallest detectable change of 1.10. The minimal important change was determined to be 2.67 points. The PSFS 2.0 showed satisfactory responsiveness, with an area under the curve of 0.82 (95% CI\u2009=\u20090.70\u20130.93). There were substantial to high correlations between the change scores of the PSFS 2.0 and the Neck Disability Index and GPE (0.60 and 0.52, respectively; P\u2009&amp;lt;\u2009.001).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>The PSFS 2.0 is a reliable and responsive patient-reported outcome measure for use by patients with neck pain.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ptj\/pzad113","type":"journal-article","created":{"date-parts":[[2023,8,22]],"date-time":"2023-08-22T11:46:27Z","timestamp":1692704787000},"source":"Crossref","is-referenced-by-count":11,"title":["Reliability, Measurement Error, Responsiveness, and Minimal Important Change of the Patient-Specific Functional Scale 2.0 for Patients With Nonspecific Neck Pain"],"prefix":"10.1093","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6375-2267","authenticated-orcid":false,"given":"Erik","family":"Thoomes","sequence":"first","affiliation":[{"name":"College of Life and Environmental Sciences, University of Birmingham Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, , Birmingham, UK"},{"name":"Fysio-Experts Research Department, , Hazerswoude, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua A","family":"Cleland","sequence":"additional","affiliation":[{"name":"Tufts University School of Medicine Department of Physical Therapy, , Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deborah","family":"Falla","sequence":"additional","affiliation":[{"name":"College of Life and Environmental Sciences, University of Birmingham Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, , Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jasper","family":"Bier","sequence":"additional","affiliation":[{"name":"Breederode University of Applied Science Department of Manual Therapy, , Rotterdam, The Netherlands"},{"name":"University Medical Center Department of General Practice, Erasmus MC, , Rotterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2865-5389","authenticated-orcid":false,"given":"Marloes","family":"de Graaf","sequence":"additional","affiliation":[{"name":"Fysio-Experts Research Department, , Hazerswoude, The Netherlands"},{"name":"Breederode University of Applied Science Department of Manual Therapy, , Rotterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2023,8,22]]},"reference":[{"key":"2024011001552555600_ref1","doi-asserted-by":"crossref","first-page":"258","DOI":"10.3138\/ptc.47.4.258","article-title":"Assessing disability and change on individual patients: a report of a patient-specific measure","volume":"47","author":"Stratford","year":"1995","journal-title":"Physiother Can"},{"key":"2024011001552555600_ref2","doi-asserted-by":"crossref","first-page":"506","DOI":"10.2174\/1874325001307010506","article-title":"Use of outcome measures in managing neck pain: an international multidisciplinary survey","volume":"7","author":"Macdermid","year":"2013","journal-title":"Open Orthop J"},{"key":"2024011001552555600_ref3","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1016\/j.msksp.2018.06.001","article-title":"Clinical reasoning in unimodal interventions in patients with non-specific neck pain in daily physiotherapy practice, a Delphi study","volume":"37","author":"Maissan","year":"2018","journal-title":"Musculoskelet Sci Pract"},{"key":"2024011001552555600_ref4","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1080\/10669817.2019.1616394","article-title":"The content and construct validity of the modified patient specific functional scale (PSFS 2.0) in individuals with neck pain","volume":"28","author":"Thoomes-de Graaf","year":"2020","journal-title":"J Man Manip Ther"},{"key":"2024011001552555600_ref5","doi-asserted-by":"crossref","first-page":"2958","DOI":"10.1080\/09638288.2020.1851784","article-title":"Psychometric properties of patient-specific functional scale in patients with upper extremity disorders. 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