Cultural adaptation and Turkish version of the Late-Life Function and Disability Instrument for individuals with gonarthrosis: a validity and reliability study.
Purposes: This study aimed to culturally adapt and assess the psychometric properties of the Turkish version of the Late-Life Function and Disability Instrument (LLFDI) in elderly individuals with knee osteoarthritis (gonarthrosis). Methods: A total of 240 participants aged ≥65 were selected using s...
| Publicado en: | Disability & Rehabilitation Vol. 48; no. 10; pp. 3237 - 3248 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
May2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=193710056&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 193710056 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09638288 B73 jtl: Disability & Rehabilitation issn: 09638288 maglogo: Y pubinfo: dt: May2026 vid: 48 iid: 10 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 193710056 189279435 193710056 193710056 10.1080/09638288.2025.2587063 193710056 ppf: 3237 ppct: 11 formats: tig: atl: Cultural adaptation and Turkish version of the Late-Life Function and Disability Instrument for individuals with gonarthrosis: a validity and reliability study. aug: au: Hazar, Yağmur Atıcı, Emine Caglıyan Erdogan, Hande Kardes, Kubra affil: Physiotherapy and Rehabilitation Department, Istanbul Okan University, Graduate Education Institute, Istanbul, Türkiye sug: subj: Instrument Validation Instrument Adaptation Geriatric Functional Assessment Osteoarthritis, Knee Psychometrics Evaluation Persons with Disabilities Human Validation Studies Clinical Assessment Tools Random Sample Pilot Studies Coefficient alpha Test-Retest Reliability Intraclass Correlation Coefficient Exploratory Research Factor Analysis Criterion-Related Validity Barthel Index Male Female Aged Aged, 80 and Over Internal Consistency Nonexperimental Studies Power Analysis Data Analysis Software Descriptive Statistics Wilcoxon Rank Sum Test Pearson's Correlation Coefficient T-Tests One-Way Analysis of Variance Aged: 65+ years Aged, 80 & over Male Female ab: Purposes: This study aimed to culturally adapt and assess the psychometric properties of the Turkish version of the Late-Life Function and Disability Instrument (LLFDI) in elderly individuals with knee osteoarthritis (gonarthrosis). Methods: A total of 240 participants aged ≥65 were selected using simple random sampling. The adaptation process followed Beaton's guidelines and included translation, back-translation, and pilot testing. Reliability was assessed using Cronbach's alpha, test-retest, and intraclass correlation coefficients (ICC), while validity was evaluated via exploratory and confirmatory factor analyses and convergent validity with established scales. As part of convergent validity, the relationship of the LLFDI with Barthe Index (BI) and the Functional Independent Measurement (FIM), the Lequesne Index were used. The correlations between the LLFDI scores and these scales were analyzed to determine the level of convergent validity. Results: The LLFDI demonstrated high internal consistency (Cronbach's α > 0.70) and test-retest reliability (ICC = 0.734–0.899). Construct validity was supported by Exploratory Factor Analysis (KMO = 0.838–0.952) and significant Bartlett's Test (p < 0.001), revealing appropriate factor structures. Convergent validity was confirmed through significant correlations with the BI, FIM, and Lequesne Index. Conclusion: This study demonstrated that the Turkish version of the LLFDI is a valid and reliable assessment tool for individuals diagnosed with gonarthrosis. Clinical Trials: NCT06858085 IMPLICATIONS FOR REHABILITATION: The Turkish version of the Late-Life Function and Disability Instrument (LLFDI) is a valid, reliable, and applicable assessment tool for individuals diagnosed with gonarthrosis. The LLFDI is a practical evaluation method capable of reflecting the levels of function and disability in individuals with gonarthrosis. It can offer valuable contributions to physiotherapy and rehabilitation programs, particularly in planning exercise prescriptions and monitoring treatment effectiveness. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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