Comparison of the reliability and validity of outcome instruments for cutaneous dermatomyositis

Klein, Rhonda Q.; Bangert, Carolyn A.; Costner, Melissa; Connolly, M. Kari; Tanikawa, Akiko; Okawa, Joyce; Rose, Mathew; Fakharzadeh, Steven; Fiorentino, David; Lee, L.A.; Sontheimer, RD; Taylor, Lynne; Troxel, Andrea B.; Werth, Victoria P.

doi:10.1111/j.1365-2133.2008.08711.x

Cited by 83 publications

(120 citation statements)

References 14 publications

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“…A previous study compared 3 skin‐specific tools, the Cutaneous Dermatomyositis Disease Area and Severity Index (CDASI), the Dermatomyositis Skin Severity Index, and the CAT 20. In that study, 10 dermatologists used these instruments to score the same 12–16 adult patients with DM in 1 session.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Utility and Validity of Three Scoring Tools to Measure Skin Involvement in Patients With Juvenile Dermatomyositis

Campanilho-Marques

Almeida

Deakin

et al. 2016

Arthritis Care & Research

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ObjectiveTo compare the abbreviated Cutaneous Assessment Tool (CAT), Disease Activity Score (DAS), and Myositis Intention to Treat Activity Index (MITAX) and correlate them with the physician's 10‐cm skin visual analog scale (VAS) in order to define which tool best assesses skin disease in patients with juvenile dermatomyositis.MethodsA total of 71 patients recruited to the UK Juvenile Dermatomyositis Cohort and Biomarker Study were included and assessed for skin disease using the CAT, DAS, MITAX, and skin VAS. The Childhood Myositis Assessment Scale (CMAS), manual muscle testing of 8 groups (MMT8), muscle enzymes, inflammatory markers, and physician's global VAS were recorded. Relationships were evaluated using Spearman's correlations and predictors with linear regression. Interrater reliability was assessed using intraclass correlation coefficients.ResultsAll 3 tools showed correlation with the physician's global VAS and skin VAS, with DAS skin showing the strongest correlation with skin VAS. DAS skin and CAT activity were inversely correlated with CMAS and MMT8, but these correlations were moderate. No correlations were found between the skin tools and inflammatory markers or muscle enzymes. DAS skin and CAT were the quickest to complete (mean ± SD 0.68 ± 0.1 minutes and 0.63 ± 0.1 minutes, respectively).ConclusionThe 3 skin tools were quick and easy to use. The DAS skin correlated best with the skin VAS. The addition of CAT in a bivariate model containing the physician's global VAS was a statistically significant estimator of skin VAS score. We propose that there is scope for a new skin tool to be devised and tested, which takes into account the strengths of the 3 existing tools.

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Section: Discussionmentioning

confidence: 99%

Comparison of the Utility and Validity of Three Scoring Tools to Measure Skin Involvement in Patients With Juvenile Dermatomyositis

Campanilho-Marques

Almeida

Deakin

et al. 2016

Arthritis Care & Research

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“…In addition, pruritus may be a prominent feature in dermatomyositis and is helpful as a distinguishing characteristic. Quality-of-life impairment in dermatomyositis is equal to or greater than that observed in other skin diseases [8], including psoriasis and atopic dermatitis.…”

Section: Clinical Manifestationsmentioning

confidence: 99%

Cutaneous Manifestations of Dermatomyositis and Their Management

Callen

2010

Curr Rheumatol Rep

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“…It has been shown to have good inter-and intrarater reliability and construct validity in children and adults with dermatomyositis (DM) [21]. Finally, the Cutaneous Dermatomyositis Area and Severity Index (CDASI) scores 16 body areas for erythema, thickness, scaling, excoriation, and ulceration [22]. Gottron's lesions, periungual changes, and alopecia are scored separately.…”

Section: Cutaneous Manifestationsmentioning

confidence: 99%

Update on the Assessment of Children with Juvenile Idiopathic Inflammatory Myopathy

Huber

2010

Curr Rheumatol Rep

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The availability of validated measurement tools to assess children with juvenile idiopathic inflammatory myopathies is critical to clinical care and to ongoing research into new therapeutic modalities and approaches. Recent work has led to the development of tools for assessment of muscle strength and physical function, skin disease, global disease activity and damage, extramuscular disease, and quality of life. Ongoing work is attempting to integrate these assessments into core sets and definitions of improvement and flare. Future work will refine these assessments and definitions and--where there are multiple choices--determine which tools constitute an optimal assessment.

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Comparison of the reliability and validity of outcome instruments for cutaneous dermatomyositis

Cited by 83 publications

References 14 publications

Comparison of the Utility and Validity of Three Scoring Tools to Measure Skin Involvement in Patients With Juvenile Dermatomyositis

Comparison of the Utility and Validity of Three Scoring Tools to Measure Skin Involvement in Patients With Juvenile Dermatomyositis

Cutaneous Manifestations of Dermatomyositis and Their Management

Update on the Assessment of Children with Juvenile Idiopathic Inflammatory Myopathy

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