ArticleAnnals of the rheumatic diseases2018
Common measure of quality of life for people with systemic sclerosis across seven European countries: a cross-sectional study.
Article in Annals of the rheumatic diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Trial
- Complement C3c Reflects Acute-Phase Response but Not Clinical Phenotype in Systemic Sclerosis: A Cross-Sectional Study.International journal of molecular sciences · 2026Article
- Capillaroscopic patterns are associated with interstitial lung disease, skin fibrosis, anti-Th/To antibodies and quality of life in systemic sclerosis: a prospective cross-sectional study.Frontiers in medicine · 2026Article
- Lower total serum Immunoglobulin G is associated with impaired patient-reported health-related quality of life in systemic sclerosis: a prospective cross-sectional study.Rheumatology international · 2025Article
- Foot peripheral sensory neuropathy: a frequent disabling manifestation in systemic sclerosis.Rheumatology (Oxford, England) · 2025Observational
- Systemic Sclerosis Quality of Life Questionnaire (SScQoL): translation into Turkish and assessing its psychometric properties.Clinical rheumatology · 2023Article
- Patient Assessment Chronic Illness Care (PACIC) and its associations with quality of life among Swiss patients with systemic sclerosis: a mixed methods study.Orphanet journal of rare diseases · 2023Article
- Evaluation of Individual Quality of Life (QOL) Among Patients with Tracheostomy Using WHO-QOL BREF Questionnaire.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2022Article
- Article
- A rare disease patient-reported outcome measure: revision and validation of the German version of the Systemic Sclerosis Quality of Life Questionnaire (SScQoL) using the Rasch model.Orphanet journal of rare diseases · 2021Article
- Cultural adaptation and validation of the Systemic Sclerosis Quality of Life questionnaire into Arabic language.Clinical rheumatology · 2021Article
- Factors associated with quality of life in systemic sclerosis: a cross-sectional study.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2019Article
- An Assessment of Environmental Health Measures in the Deepwater Horizon Research Consortia.Current opinion in toxicology · 2019Article
- The King's Brief Interstitial Lung Disease (KBILD) questionnaire: an updated minimal clinically important difference.BMJ open respiratory research · 2019Article
Corrections and comments
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Authors and funding
17 authors.
Funding
Abstract
objectivesThe aim of this study was to adapt the Systemic Sclerosis Quality of Life Questionnaire (SScQoL) into six European cultures and validate it as a common measure of quality of life in systemic sclerosis (SSc).
methodsThis was a seven-country (Germany, France, Italy, Poland, Spain, Sweden and UK) cross-sectional study. A forward-backward translation process was used to adapt the English SScQoL into target languages. SScQoL was completed by patients with SSc, then data were validated against the Rasch model. To correct local response dependency, items were grouped into the following subscales: function, emotion, sleep, social and pain and reanalysed for fit to the model, unidimensionality and cross-cultural equivalence.
resultsThe adaptation of the SScQoL was seamless in all countries except Germany. Cross-cultural validation included 1080 patients with a mean age 58.0 years (SD 13.9) and 87% were women. Local dependency was evident in individual country data. Grouping items into testlets corrected the local dependency in most country specific data. Fit to the model, reliability and unidimensionality was achieved in six-country data after cross-cultural adjustment for Italy in the social subscale. The SScQoL was then calibrated into an interval level scale.
conclusionThe individual SScQoL items have translated well into five languages and overall, the scale maintained its construct validity, working well as a five-subscale questionnaire. Measures of quality of life in SSc can be directly compared across five countries (France, Poland Spain, Sweden and UK). Data from Italy are also comparable with the other five countries although require an adjustment.
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