ArticleHealth and quality of life outcomes2015
Cross-cultural adaptation, reliability and validity of the Turkish version of the spine functional index.
Article in Health and quality of life outcomes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 1 citations in OpenAlex.
- Translating and Validating a Hindi Version of the Spine Functional Index: Cross-cultural Adaptation and Psychometric Testing in an Indian Orthopedic Population.Journal of orthopaedic case reports · 2026Article
- A shortened 10-item Spine Functional Index: clinimetric properties indicate a reliable, responsive and practical measure.BMC musculoskeletal disorders · 2025Article
- Efficacy of Myofascial Release Therapy and Positional Release Therapy in Patients with Upper Trapezius Trigger Points: Study Protocol of a Double-blinded Randomized Clinical Trial.International journal of therapeutic massage & bodywork · 2024Article
- Translation, cross-cultural adaptation, and validation of the 10-item spine functional index (SFI-10) in the Brazilians with musculoskeletal spine disorders.BMC musculoskeletal disorders · 2024Article
- Developing a shortened spine functional index (SFI-10) for patients with sub-acute/chronic spinal disorders: a cross-sectional study.BMC musculoskeletal disorders · 2024Article
- Cross-cultural adaptation and validation of the Lithuanian version of the Spine Functional Index.PloS one · 2024Observational
- Cross-cultural adaptation, validity, and reliability of the Persian version of the Upper Limb Functional Index.Hand therapy · 2021Article
- Cross-cultural adaptation and validation of the Polish version of the Spine Functional Index.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2020Article
- Cross-cultural adaptation, validity, and reliability of the Persian version of the spine functional index.Health and quality of life outcomes · 2018Article
- Cross-cultural validation of simplified Chinese version of spine functional index.Health and quality of life outcomes · 2017Article
- The reliability and validity of the Korean version of the spine functional index.Journal of physical therapy science · 2017Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Spine Functional Index (SFI) is a patient reported outcome measure with sound clinimetric properties and clinical viability for the determination of whole-spine impairment. To date, no validated Turkish version is available. The purpose of this study is to cross-culturally adapted the SFI for Turkish-speaking patients (SFI-Tk) and determine the psychometric properties of reliability, validity and factor structure in a Turkish population with spine musculoskeletal disorders.
methodsThe SFI English version was culturally adapted and translated into Turkish using a double forward and backward method according to established guidelines. Patients (n = 285, cervical = l29, lumbar = 151, cervical and lumbar region = 5, 73% female, age 45 ± 1) with spine musculoskeletal disorders completed the SFI-Tk at baseline and after a seven day period for test-retest reliability. For criterion validity the Turkish version of the Functional Rating Index (FRI) was used plus the Neck Disability Index (NDI) for cervical patients and the Oswestry Disability Index (ODI) for back patients. Additional psychometric properties were determined for internal consistency (Chronbach's α), criterion validity and factor structure.
resultsThere was a high degree of internal consistency (α = 0.85, item range 0.80-0.88) and test-retest reliability (r = 0.93, item range = 0.75-0.95). The factor analysis demonstrated a one-factor solution explaining 24.2% of total variance. Criterion validity with the ODI was high (r = 0.71, p < 0.001) while the FRI and NDI were fair (r = 0.52 and r = 0.58, respectively). The SFI-Tk showed no missing responses with the 'half-mark' option used in 11.75% of total responses by 77.9% of participants. Measurement error from SEM and MDC90 were respectively 2.96% and 7.12%.
conclusionsThe SFI-Tk demonstrated a one-factor solution and is a reliable and valid instrument. The SFI-Tk consists of simple and easily understood wording and may be used to assess spine region musculoskeletal disorders in Turkish speaking patients.
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