Back to Search
Start Over
International multicenter psoriasis and psoriatic arthritis reliability trial for the assessment of skin, joints, nails, and dactylitis.
- Source :
-
Arthritis and rheumatism [Arthritis Rheum] 2009 Sep 15; Vol. 61 (9), pp. 1235-42. - Publication Year :
- 2009
-
Abstract
- Objective: Clinical trials in psoriasis and psoriatic arthritis (PsA) involve assessment of the skin and joints. This study aimed to determine whether assessment of the skin and joints in patients with PsA by rheumatologists and dermatologists is reproducible.<br />Methods: Ten rheumatologists and 9 dermatologists from 7 countries met for a combined physical examination exercise to assess 20 PsA patients (11 men, mean age 51 years, mean PsA duration 11 years). Each physician assessed 10 patients according to a modified Latin square design that enabled the assessment of patient, assessor, and order effect. Tender joint count (TJC), swollen joint count (SJC), dactylitis, physician's global assessment (PGA) of PsA disease activity (PGA-PsA), psoriasis body surface area (BSA), Psoriasis Area and Severity Index (PASI), Lattice System Physician's Global Assessment of psoriasis (LS-PGA), National Psoriasis Foundation Psoriasis Score (NPF-PS), modified Nail Psoriasis Severity Index (mNAPSI), number of fingernails with nail changes (NN), and PGA of psoriasis activity (PGA-Ps) were assessed. Variance components analyses were carried out to estimate the intraclass correlation coefficient (ICC), adjusted for the order of measurements.<br />Results: There is excellent agreement (ICC >/=0.80) on the mNAPSI, substantial agreement (0.6 >/= ICC < 0.80) on the TJC, PASI, and NN, moderate agreement (0.4 >/= ICC < 0.60) on the PGA-Ps, LS-PGA, NPF-PS, and BSA, and fair agreement (0.2 >/= ICC < 0.40) on the SJC, dactylitis, and PGA-PsA. The only measure that showed a significant difference between dermatologists and rheumatologists was dactylitis (P = 0.0005).<br />Conclusion: There is substantial to excellent agreement on the TJC, PASI, NN, and mNAPSI among rheumatologists and dermatologists.
- Subjects :
- Arthritis, Psoriatic diagnosis
Arthritis, Psoriatic pathology
Female
Hand Joints pathology
Humans
Inflammation diagnosis
Inflammation pathology
International Cooperation
Male
Middle Aged
Nails pathology
Observer Variation
Psoriasis diagnosis
Psoriasis pathology
Reproducibility of Results
Sensitivity and Specificity
Skin pathology
Arthritis, Psoriatic physiopathology
Hand Joints physiopathology
Inflammation physiopathology
Nails physiopathology
Psoriasis physiopathology
Severity of Illness Index
Skin physiopathology
Subjects
Details
- Language :
- English
- ISSN :
- 0004-3591
- Volume :
- 61
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Arthritis and rheumatism
- Publication Type :
- Academic Journal
- Accession number :
- 19714610
- Full Text :
- https://doi.org/10.1002/art.24562