ArticleEuropean journal of physical and rehabilitation medicine2023
Cross-cultural validation of the Italian Spine Youth Quality of Life questionnaire: the ISYQOL international.
Article in European journal of physical and rehabilitation medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 11 citations in OpenAlex.
- Patient-Reported Outcome Measures for Quality of Life in Adolescent Idiopathic Scoliosis: Validity, Reliability, and Clinical Utility-A Narrative Review.Healthcare (Basel, Switzerland) · 2026Review
- Validity of the Arabic Version of the PROMIS Anxiety and PROMIS Depression in Cancer Questionnaires: Measuring Depression and Anxiety in Oncologic Patients in Saudi Arabia-A Rasch Analysis Study.Journal of clinical medicine · 2025Article
- Let's chat (GPT) about adolescent idiopathic scoliosis: accuracy and reliability of chat responses to frequently asked questions.BMC musculoskeletal disorders · 2025Article
- Validating Patient-Reported Outcomes and Surveys in Other Languages.Current reviews in musculoskeletal medicine · 2025Review
- Comparison of the efficacy of thoracolumbosacral and lumbosacral orthosis for adolescent idiopathic scoliosis in patients with major thoracolumbar or lumbar curves: a prospective controlled study.Frontiers in pediatrics · 2024Article
- Cross-Cultural Adaptation and Psychometric Properties of the Traditional Chinese Version of the Italian Spine Youth Quality of Life (ISYQOL) Questionnaire.Healthcare (Basel, Switzerland) · 2023Article
- Measuring Quality of Life in Adults with Scoliosis: A Cross-Sectional Study Comparing SRS-22 and ISYQOL Questionnaires.Journal of clinical medicine · 2023Article
- Scoliosis and spinal deformities: twenty years of innovations.European journal of physical and rehabilitation medicine · 2023Article
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Authors and funding
13 authors at 8 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAdolescent idiopathic scoliosis and its treatments can severely impact health-related quality of life. The Italian Spine Youth Quality of Life (ISYQOL) questionnaire, initially developed in Italian and tested on Italian people, was created to measure quality of life in young persons with spine changes. ISYQOL was created using the Rasch analysis, a modern psychometric technique for questionnaires' assessment and development, which showed that the ordinal scores of the ISYQOL Italian version provide sound quality of life measures.
aimThe current work aims to evaluate the cross-cultural equivalence of the ISYQOL questionnaire in seven different countries.
designCross-sectional, international, multi-centre study.
settingOutpatient clinic. POPULATION: Five hundred fifty persons with adolescent idiopathic scoliosis from English Canada, French Canada, Greece, Italy, Spain, Poland, and Türkiye.
methodsThe ISYQOL Italian version was translated into six languages with the forward-backwards procedure. The conceptual equivalence of the items' content was verified, and any inconsistency was resolved by consensus. The Rasch analysis was used here to evaluate that ISYQOL translations retained the good measurement properties of the Italian version of the questionnaire. In addition, the Differential Item Functioning (DIF) was checked to assess the psychometric equivalence of the ISYQOL items in patients from different countries.
resultsFour items of the translated ISYQOL were dropped from the questionnaire since they did not contribute to measuring due to their poor fit to the model of Rasch. Seven items were affected by DIF for nationality, a finding pointing out that these items do not work the same (i.e. are not equivalent) in the different countries. Thanks to the Rasch analysis, the DIF for nationality was amended, and ISYQOL International was eventually obtained.
conclusionsISYQOL International returns interval quality of life measures in people with adolescent idiopathic scoliosis with high cross-cultural equivalence in the tested countries. CLINICAL REHABILITATION IMPACT: Rigorous testing showed that ISYQOL International ordinal scores return quality of life measures cross-culturally equivalent in English and French Canada, Greece, Italy, Spain, Poland, and Türkiye. A new, psychometrically sound patient-reported outcome measure is thus available in rehabilitation medicine to measure health-related quality of life in idiopathic scoliosis.
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