Psychometric properties of the painDETECT questionnaire in rheumatoid arthritis, psoriatic arthritis and spondyloarthritis: Rasch analysis and test-retest reliability

Health and Quality of Life Outcomes
Signe Rifbjerg-MadsenKirstine Amris

Abstract

Pain is inherent in rheumatoid arthritis (RA), psoriatic arthritis (PsA) and spondyloarthritis (SpA) and traditionally considered to be of nociceptive origin. Emerging data suggest a potential role of augmented central pain mechanisms in subsets of patients, thus, valid instruments that can identify underlying pain mechanisms are needed. The painDETECT questionnaire (PDQ) was originally designed to differentiate between pain phenotypes. The objectives were to evaluate the psychometric properties of the PDQ in patients with inflammatory arthritis by applying Rasch analysis and to explore the reliability of pain classification by test-retest. For the Rasch analysis 900 questionnaires from patients with RA, PsA and SpA (300 per diagnosis) were extracted from 'the DANBIO painDETECT study'. The analysis was directed at the seven items assessing somatosensory symptoms and included: 1) the performance of the six-category Likert scale; 2) whether a unidimensional construct was defined; 3) the reliability and precision of estimates. Another group of 30 patients diagnosed with RA, PsA or SpA participated in a test-retest study. Intraclass Correlation Coefficients (ICC) and classification consistency were calculated. The Rasch analysis re...Continue Reading

References

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Sep 4, 2015·Arthritis Research & Therapy·Sanne M W KoopMart A F J van de Laar

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Citations

Aug 22, 2018·Current Osteoporosis Reports·Angela Zhang, Yvonne C Lee
Oct 23, 2020·Arthritis Care & Research·Afton L HassettDavid A Williams
Mar 2, 2021·Therapeutic Advances in Musculoskeletal Disease·Giovanni AdamiAngelo Fassio
Mar 31, 2021·Rheumatic Diseases Clinics of North America·Priyanka Iyer, Yvonne C Lee
Jul 17, 2021·Current Pain and Headache Reports·Kristen MathiasAlaa Abd-Elsayed

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Methods Mentioned

BETA
PCA

Software Mentioned

SAS
painDETECT
WINSTEPS

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