ArticleHealth and quality of life outcomes2010
Differential item functioning (DIF) analyses of health-related quality of life instruments using logistic regression.
Article in Health and quality of life outcomes, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
70 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Systematic Review of 207 Studies Describing Validation Aspects of the Dermatology Life Quality Index.Acta dermato-venereologica · 2024Pooled it
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- Exploring differential item functioning in the SF-36 by demographic, clinical, psychological and social factors in an osteoarthritis population.BMC musculoskeletal disorders · 2013Trial
- Tutorial on Analyzing Patient-Reported Outcome Measures in Clinical Development.Clinical and translational science · 2026Review
- Measurement Properties of the Functional Balance Ability Measure Across Subacute Neurologic Diagnoses.Archives of rehabilitation research and clinical translation · 2026Article
- Diagnostic accuracy and psychometric properties of the fibromyalgia rapid screening tool in Mexican patients with chronic musculoskeletal pain.Clinical rheumatology · 2026Article
- Challenges of Cross-Cultural Validation of Clinical Assessment Measures: A Practical Introduction.Journal of advanced nursing · 2026Article
- International application of an optimized harmonization approach for longitudinal cognitive data in people with HIV.Journal of clinical epidemiology · 2025Article
- Advancing Pediatric Cognitive Health: Psychometric Evaluation and IRT- and Regression-Based Norms for Two Neuropsychological Measures in Colombian Children and Adolescents.Healthcare (Basel, Switzerland) · 2025Article
- Validation of the ecological momentary well-being instrument (EMOWI) in Canadian adolescents.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025Article
- A Critical Evaluation of the COMFORTneo Scale's Validity and Applicability for Preterm Infants.Paediatric & neonatal pain · 2025Article
- Frequency and severity response scales for pain and discomfort: psychometric insights from EQ-HWB.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025Article
- Measurement properties of the Comprehensive Quality-of-Life Measure for Acne (CompAQ): a cohort study at three international sites.The British journal of dermatology · 2025Article
- The EORTC QLQ-F17 as a shortened version of the EORTC QLQ-C30 to assess self-reported functioning in cancer patients: investigating equivalence and psychometric properties in a randomized cross-over trial.EClinicalMedicine · 2025Article
- Differential item functioning between English, German, and Spanish PROMIS® physical function ceiling items.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025Article
- The Process of Translation and Cross-Cultural Adaptation of Functional Assessment Tools for Dementia: A Systematized Review.Health science reports · 2025Review
- Article
- Psychometric Assessment of an Item Bank for Adaptive Testing on Patient-Reported Experience of Care Environment for Severe Mental Illness: Validation Study.JMIR mental health · 2024Article
- Differential Performance of Social Communication Questionnaire Items in African American/Black vs. White Children.Journal of autism and developmental disorders · 2024Article
- Article
10 more citing papers are in PubMed but not listed here.
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Authors and funding
11 authors.
Funding
Abstract
backgroundDifferential item functioning (DIF) methods can be used to determine whether different subgroups respond differently to particular items within a health-related quality of life (HRQoL) subscale, after allowing for overall subgroup differences in that scale. This article reviews issues that arise when testing for DIF in HRQoL instruments. We focus on logistic regression methods, which are often used because of their efficiency, simplicity and ease of application.
methodsA review of logistic regression DIF analyses in HRQoL was undertaken. Methodological articles from other fields and using other DIF methods were also included if considered relevant.
resultsThere are many competing approaches for the conduct of DIF analyses and many criteria for determining what constitutes significant DIF. DIF in short scales, as commonly found in HRQL instruments, may be more difficult to interpret. Qualitative methods may aid interpretation of such DIF analyses.
conclusionsA number of methodological choices must be made when applying logistic regression for DIF analyses, and many of these affect the results. We provide recommendations based on reviewing the current evidence. Although the focus is on logistic regression, many of our results should be applicable to DIF analyses in general. There is a need for more empirical and theoretical work in this area.
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