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The aim of the study is to evaluate the validity and psychometric features of the DHI in patients with systemic sclerosis (SSc). Methods: SSc patients diagnosed using EULAR\/ACR 2013 criteria were included in study. Hand functionality was assessed using the DHI, Hand Functional Index (HFI) and visual analog scales (VAS) for disability and handicap. Overall disability and quality of life were measured using the Health Assessment Questionnaire (HAQ) and Short Form-36 (SF-36). Reliability (Cronbach\u2019s alpha and ICC) and validity (face, content, convergent and divergent) were also analyzed and correlations with other measures assessed for construct validity of the DHI were examined. Results: Seventy-three patients were included in the study, 78.1% were female. The baseline mean DHI score was 31.2 (SD: 20.2). Completion and calculation of the questionnaire were easy and took 5\u00a0min and 30\u00a0s, respectively. The Cronbach\u2019s alpha coefficient for internal consistency was 0.973 and the ICC for test-retest reliability was 0.993 (95%CI 0.981\u20130.997), suggesting that the DHI has high internal consistency and a high degree of reliability. Cognitive debriefing showed that the DHI is clear, understandable, relevant, and covers many domains of daily life, indicating good face and content validity. The DHI demonstrated good to moderate correlations with functional measures indicating convergent validity and moderate to non-significant correlations with non-functional parameters that supported divergent validity. Cronbach\u2019s alpha was 0.973, indicating excellent internal consistency. Conclusion: In SSc patients, specific tools for assessing hand function are lacking. The DHI is a practical, reliable and valid measurement tool for both clinical assessment and research in this disease affecting skin, tendons, subcutaneous tissue and arthritis.<\/jats:p>","DOI":"10.1007\/s00296-025-05829-z","type":"journal-article","created":{"date-parts":[[2025,3,15]],"date-time":"2025-03-15T04:41:19Z","timestamp":1742013679000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Validity and psychometric characteristics of the Duru\u00f6z Hand Index (DHI) in patients with systemic sclerosis"],"prefix":"10.1007","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3584-2788","authenticated-orcid":false,"given":"Mehmet Tuncay","family":"Duru\u00f6z","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1002-962X","authenticated-orcid":false,"given":"Nuran","family":"\u00d6z","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2690-6196","authenticated-orcid":false,"given":"Yusuf","family":"Karabulut","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4962-0385","authenticated-orcid":false,"given":"Didem","family":"Erdem G\u00fcrsoy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8790-304X","authenticated-orcid":false,"given":"Halise Hande","family":"Gezer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4805-0555","authenticated-orcid":false,"given":"Sevtap","family":"Acer Kasman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,3,15]]},"reference":[{"key":"5829_CR1","doi-asserted-by":"publisher","first-page":"304","DOI":"10.1016\/S0140-6736(23)00065-6","volume":"401","author":"ER Volkmann","year":"2023","unstructured":"Volkmann ER, Andr\u00e9asson K, Smith V (2023) Systemic sclerosis. 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Now, it has been Corrected.","order":6,"name":"change_details","label":"Change Details","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"18 April 2025","order":7,"name":"change_date","label":"Change Date","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"Correction","order":8,"name":"change_type","label":"Change Type","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"A Correction to this paper has been published:","order":9,"name":"change_details","label":"Change Details","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"https:\/\/doi.org\/10.1007\/s00296-025-05844-0","URL":"https:\/\/doi.org\/10.1007\/s00296-025-05844-0","order":10,"name":"change_details","label":"Change Details","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All procedures performed in studies involving human participants were performed in accordance with the ethical standards of the institutional and\/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Ethical approval was granted by the Marmara University Faculty of Medicine Research Ethics Committee.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"Informed consent was obtained from all subjects before enrollment.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"Accepted at the EULAR 2023 European Congress of Rheumatology. Published text information: M.T. Duru\u00f6z, Y. Karabulut, N. \u00d6z, D. Erdem G\u00fcrsoy, H.H. Gezer, S. Acer Kasman. AB0834\u2005VALIDITY AND PSYCHOMETRIC CHARACTERISTICS OF THE DURU\u00d6Z HAND INDEX IN TURKISH PATIENTS WITH SYSTEMIC SCLEROSIS. Annals of the Rheumatic Diseases, Volume 82, Supplement 1,2023, Pages 1629\u20131630, ISSN 0003-4967, .","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Note on related congress abstracts and publication"}},{"value":"The authors declare that there are no conflicts of interest.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}],"article-number":"75"}}