Test-retest reliability for HAQ-DI and SF-36 PF for the measurement of physical function in psoriatic arthritis

Ying Ying Leung, William Tillett, Pil Hojgaard, Ana-Maria Orbai, Richard Holland, Ashish J Mathew, Niti Goel, Jeffrey Chau, Chris Lindsay, Alexis Ogdie, Laura C Coates, Robin Christensen, Philip Mease, Vibeke Strand, Dafna D Gladman

Publikation: Bidrag til tidsskriftArtikelForskningpeer review


OBJECTIVE: Due to no existing data, we aimed to derive evidence to support test-retest reliability for the Health Assessment Questionnaire-Disability Index (HAQ-DI) and 36-item Short Form Health Survey physical functioning domain (SF-36 PF) in psoriatic arthritis (PsA).

METHODS: We identified datasets that collected relevant data for test-retest reliability for HAQ-DI and SF-36 PF, and evaluated them using Outcome Measures in Rheumatology (OMERACT) Filter 2.1 methodology. We calculated intraclass correlation coefficients (ICC) as a measure of test-retest reliability. We then conducted a quality assessment and evaluated the adequacy of test-retest reliability performance.

RESULTS: Two datasets were identified for HAQ-DI and 1 for SF-36 PF in PsA. The quality of the datasets was good. The ICCs for HAQ-DI were good and excellent in study 1 (0.90, 95% CI 0.79-0.95) and study 2 (0.94, 95% CI 0.89-0.97). The ICC for SF-36 PF was excellent (0.96, 95% CI 0.92-0.98). The performance of test-retest reliability for both instruments was judged to be adequate.

CONCLUSION: The new data derived support good and reasonable test-retest reliability for HAQ-DI and SF-36 PF in PsA.

Sider (fra-til)1547-1551
Antal sider5
TidsskriftJournal of Rheumatology
Udgave nummer10
Tidlig onlinedato15 apr. 2021
StatusUdgivet - okt. 2021

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Copyright © 2021 by the Journal of Rheumatology.


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