{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T04:08:13Z","timestamp":1770178093524,"version":"3.49.0"},"reference-count":22,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T00:00:00Z","timestamp":1741651200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004694","name":"Kaohsiung Medical University","doi-asserted-by":"publisher","award":["KMU-112017"],"award-info":[{"award-number":["KMU-112017"]}],"id":[{"id":"10.13039\/501100004694","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004694","name":"Kaohsiung Medical University","doi-asserted-by":"publisher","award":["NSTC 113-2314-B-037-080"],"award-info":[{"award-number":["NSTC 113-2314-B-037-080"]}],"id":[{"id":"10.13039\/501100004694","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004663","name":"National Science and Technology Council","doi-asserted-by":"publisher","award":["KMU-112017"],"award-info":[{"award-number":["KMU-112017"]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004663","name":"National Science and Technology Council","doi-asserted-by":"publisher","award":["NSTC 113-2314-B-037-080"],"award-info":[{"award-number":["NSTC 113-2314-B-037-080"]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: Many patients with neck pain have arm problems. The purpose of this study was to examine the psychometric properties of the QuickDASH in patients reporting neck pain by Rasch analysis. Methods: The study was a cross-sectional study. Rasch analysis was used to examine the QuickDASH for unidimensionality, category function, item difficulty and targeting, and reliability in patients with neck pain. The two-factor model, comprising a function factor (items 1\u20138) and symptom factor (items 9\u201311), were separately assessed by Rasch analysis. Results: The mean age of the 302 participants was 57.9 \u00b1 10.4 years old. The mean QuickDASH score was 24.8 \u00b1 23.3 (95% CI: 22.2\u201327.5). For the function factor, the InfitMNSQ\/OutfitMNSQ ranges were 0.700\u20131.124\/0.661\u20131.121, indicating that all items fitted the model\u2019s expectation. Only two items (items 4 and 6) exhibited category response disorder. The map for the person\u2013item response thresholds covered the patient distribution well. The reliability was good, with a person separation index of 0.85. For the symptom factor, the InfitMNSQ\/OutfitMNSQ ranges were 0.522\u20130.863\/0.517\u20130.885, indicating that all items fitted the model\u2019s expectation. No items with category response disorder were found for the symptom factor, and the reliability was good, with a person separation index of 0.82. Conclusions: The items fit the Rasch model well, and the wide range of item response thresholds covered the ranges of the patients\u2019 disability and symptoms well. The QuickDASH has a two-factor structure, and is an excellent measure of upper limb function and symptoms in patients reporting neck pain.<\/jats:p>","DOI":"10.3390\/jcm14061870","type":"journal-article","created":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T06:52:30Z","timestamp":1741675950000},"page":"1870","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Rasch Analysis of the QuickDASH in Patients with Neck Pain"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9876-8429","authenticated-orcid":false,"given":"Yen-Mou","family":"Lu","sequence":"first","affiliation":[{"name":"Department of Orthopaedics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan"},{"name":"Division of Pediatric and Spinal Orthopedics, Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuh-Yih","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Special Education, National Kaohsiung Normal University, Kaohsiung 802, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi-Jing","family":"Lue","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan"},{"name":"Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"492","DOI":"10.1016\/j.math.2013.05.004","article-title":"Patients with non-specific neck disorders commonly report upper limb disability","volume":"18","author":"Osborn","year":"2013","journal-title":"Man. 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