ArticleHealth and quality of life outcomes2016
Rasch analysis holds no brief for the use of the Dermatology Life Quality Index (DLQI) in Chinese neurodermatitis patients.
Article in Health and quality of life outcomes, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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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
9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.
- A Systematic Review of 207 Studies Describing Validation Aspects of the Dermatology Life Quality Index.Acta dermato-venereologica · 2024Pooled it
- Differences in Psychometric Properties of Clinician- and Patient-Reported Outcome Measures for Atopic Dermatitis by Race and Skin Tone: A Systematic Review.The Journal of investigative dermatology · 2022Pooled it
- Patient-Reported Outcome Measures in Dermatology: A Systematic Review.Acta dermato-venereologica · 2021Pooled it
- Risk factors for anxiety and depression in patients with atopic dermatitis and their impact on prognosis.World journal of psychiatry · 2025Article
- Patient-reported outcome (PRO) instruments for disease severity and quality of life in patients with atopic dermatitis: a systematic review of English and Chinese literature.Annals of translational medicine · 2022Review
- A Rasch model analysis of two interpretations of 'not relevant' responses on the Dermatology Life Quality Index (DLQI).Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2021Article
- Validation of the Chinese Version of KIDSCREEN-10 Quality of Life Questionnaire: A Rasch Model Estimation.Frontiers in psychology · 2021Article
- Dimensionality and psychometric analysis of DLQI in a Brazilian population.Health and quality of life outcomes · 2020Article
- Assessment of the Dermatology Life Quality Index (DLQI) in a homogeneous population under lifetime arsenic exposure.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Dermatology Life Quality Index (DLQI) is the most widely used measure of health-related quality of life (HRQoL) associated with skin disease. Recently, the psychometric properties of the DLQI have caused some controversy because the instrument appears not to meet the requirements of modern test theory. The purpose of this study was to assess whether these psychometric issues also occur in Chinese patients with neurodermatitis.
methodsOne hundred fifty consecutive outpatients (83 males and 67 females) seeking treatment for neurodermatitis were assessed for eligibility for this prospective study between July 1, 2011 and September 30, 2011. The DLQI and a demographic questionnaire were completed. One female participant who incompletely answered the DLQI was excluded. Data were analyzed using the Rasch model in order to obtain meaningful scores for the DLQI. Scale assessment included analysis of rating scale function, item fit to the Rasch model, aspects of person-response validity, unidimensionality, person-separation reliability, and differential item function.
resultsThe rating scale advanced monotonically for all items in the DLQI, but item 9 did not demonstrate acceptable goodness-of-fit (Infit MnSq values >1.3) to the Rasch model. The 10 items of the DLQI met the criteria for person-separation reliability (PSI = 2.38) and the first latent dimension (general QoL) accounted for 50.8 % of the variance; but the variance explained by the second dimension (7.1 %) exceeded the criterion of 5 %. There were also limitations related to person-response validity, because ≥ 5 % (18.1 %) of cases demonstrated unacceptable fit. There was no uniform differential item functioning.
conclusionsFor neurodermatitis patients, the DLQI seems to have poor fit to the Rasch model; therefore, we recommend against using this instrument with neurodermatitis patients.
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