ArticleQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2006
Single-factor scoring validation for the Health Assessment Questionnaire-Disability Index (HAQ-DI) in patients with systemic sclerosis and comparison with early rheumatoid arthritis patients.
Article in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2006. 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.
- Trial
- Reliability, validity, and minimally important differences of the SF-6D in systemic sclerosis.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2007Trial
- Case study of resecabtagene autoleucel in a subject with diffuse cutaneous systemic sclerosis treated in the RESET-SSc trial.Molecular therapy. Advances · 2026Article
- Coping profiles and health outcomes among individuals with systemic sclerosis: A latent profile analysis approach.Journal of scleroderma and related disorders · 2020Article
- 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
- Pain, fatigue and functional disability are associated with higher educational needs in systemic sclerosis: a cross-sectional study.Rheumatology international · 2018Article
- Evaluation of the Satisfaction with Appearance Scale and Its Short Form in Systemic Sclerosis: Analysis from the UCLA Scleroderma Quality of Life Study.The Journal of rheumatology · 2015Article
- Correlates and responsiveness to change of measures of skin and musculoskeletal disease in early diffuse systemic sclerosis.Arthritis care & research · 2014Observational
- Application of the health assessment questionnaire disability index to various rheumatic diseases.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2010Article
- Validation of the Migraine-Specific Quality of Life Questionnaire version 2.1 (MSQ v. 2.1) for patients undergoing prophylactic migraine treatment.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2007Article
- Outcome measures in systemic sclerosis: an update on instruments and current research.Current rheumatology reports · 2007Review
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Authors and funding
9 authors.
Funding
Abstract
objectiveStructural validity for the Health Assessment Questionnaire-Disability Index (HAQ-DI) has recently been provided for patients with rheumatoid arthritis (RA). The goal of the current study was to examine the structural validity of the HAQ-DI in patients with systemic sclerosis (SSc, scleroderma) and to compare its performance with that in patients with RA.
methodsThe HAQ-DI structural validity was first assessed in a sample of 100 scleroderma patients using confirmatory factor analysis. Second, the similarity of factor structures between SSc patients (n = 291) and RA patients (n = 278) was tested using a multigroup structural validity model to assure that comparison of scores between these two diagnostic groups is appropriate.
resultsResults yielded a single-factor HAQ-DI score which favored the current scoring system of the HAQ-DI (model fit was CFI = 0.99 and RMSEA = 0.04). Moreover, even the most stringent model of multigroup structural validity affirmed the similarity between SSc and RA patients on the HAQ-DI (model fit was CFI = 0.99 and RMSEA = 0.04) nor was it different from a model without any demands on group similarity: CFI difference = 0.007; chi(2) = 4.29, df = 26, p=0.99.
conclusionThe current results indicate that a single-factor HAQ-DI is appropriate for future clinical trials in scleroderma and, in addition, HAQ-DI scores among patients with SSc and early RA can be compared legitimately with one another.
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