NDLI: Patient-centered psoriatic arthritis (PsA) activity assessment by Stockerau Activity Score for Psoriatic Arthritis (SASPA)

Content Provider	Springer Nature : BioMed Central
Author	Leeb, Burkhard F Haindl, Pia M Brezinschek, Hans-Peter Mai, Harsono T H Deutsch, Christoph Rintelen, Bernhard
Abstract	Background To investigate whether a modified Rheumatoid Arthritis Disease Activity Index-5 could be applied as a routine assessment tool for psoriatic arthritis (PsA) patients. Methods Ninety-seven PsA outpatients (mean age 49.78 years; age range 23–80 years; 49 male, 48 female), completed a prototype questionnaire. Tender and swollen joint counts, including enthesiopathy, physician’s assessment of disease activity on a visual analog scale (MDglob), erythrocyte sedimentation rate, and patient satisfaction with disease status (PatSat: 1 = excellent to 5 = unsatisfactory) were recorded. Factorial analysis was performed and alpha, as a measure of reliability, and tau were calculated. The ultimate five-item questionnaire, calculated by (Q1 + Q2 + Q3 + Q4 + Q5)/5, was then handed over to 152 PsA outpatients (mean age 54.02 years; age range 26–80 years; 82 male, 70 female), and analyzed accordingly. Results Analyzing the internal consistency of the prototype questionnaire revealed the highest alpha value of 0.849, on deleting the question targeting disease course. Alpha for the final Stockerau Activity Score for Psoriatic Arthritis (SASPA) was 0.875, with all items contributing to the final result (item loading from 0.573 to 0.910). Kendall’s tau for the relationship between SASPA scores and swollen joint count, tender joint count, and MDglob was 0.34, 0.416, and 0.392, respectively. The sensitivity of the questionnaire to change was demonstrated in patients starting treatment with a tumor necrosis factor blocker (standardized mean difference: 2.1). Conclusion The SASPA questionnaire constitutes a fully patient-administered tool to monitor PsA activity. Its reliability, convergent validity, and sensitivity to change were demonstrated.
Related Links	https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/s12891-015-0512-7.pdf
Ending Page	8
Page Count	8
Starting Page	1
File Format	HTM / HTML
ISSN	14712474
DOI	10.1186/s12891-015-0512-7
Journal	BMC Musculoskeletal Disorders
Issue Number	1
Volume Number	16
Language	English
Publisher	BioMed Central
Publisher Date	2015-04-01
Access Restriction	Open
Subject Keyword	Orthopedics Rehabilitation Rheumatology Sports Medicine Internal Medicine Epidemiology Psoriatic arthritis Disease activity assessment Patient questionnaire
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rheumatology
Journal Impact Factor	2.2/2023
5-Year Journal Impact Factor	2.6/2023

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