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Abstract
OBJECTIVES: To compare the performance of three psoriatic arthritis (PsA) screening questionnaires in a primary care psoriasis surveillance study.
METHODS: Participants with psoriasis, and not known to have psoriatic arthritis (PsA), were identified from general practice databases and invited to attend a secondary care centre for a clinical assessment. The three patient-completed screening questionnaires (PEST, CONTEST, and CONTESTjt) were administered along with other patient reported measures and a clinical examination of skin and joints was performed. Participants who demonstrated signs of inflammatory arthritis suggestive of PsA were referred, via their GP, for a further assessment in a secondary care rheumatology clinic.
RESULTS: A total of 791 participants attended the screening visit and 165 participants were judged to have signs and symptoms of inflammatory arthritis, of which 150 were referred for assessment. Of these 126 were seen and 48 were diagnosed with PsA. The results for each questionnaire were as follows: PEST: Sensitivity 0.625 (95% CI 0.482-0.749), specificity 0.757 (0.724-0.787). CONTEST: Sensitivity 0.604 (0.461-0.731), specificity 0.768 (0.736-0.798). CONTESTjt: Sensitivity 0.542 (0.401-0.676), specificity 0.834 (0.805-0.859). CONTESTjt demonstrated marginally superior specificity to PEST though the area under the ROC curve was similar for all three instruments.
CONCLUSIONS: Minimal differences between the three screening questionnaires were found in this study and no preference can be made based on these results. The choice of which instrument to choose will depend on other factors, such as simplicity and low patient burden.
Original language | English |
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Pages (from-to) | 991-998 |
Number of pages | 8 |
Journal | Rheumatology (Oxford, England) |
Volume | 63 |
Issue number | 4 |
Early online date | 21 Jun 2023 |
DOIs | |
Publication status | Published - 30 Apr 2024 |
Bibliographical note
Funding: This report is independent research funded by the National Institute forHealth Research, Programme Grants for Applied Research [Early detection to
improve outcome in patients with undiagnosed PsA (‘PROMPT’), RP-PG-1212-
20007]. The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care.
Data Availability Statement
The data underlying this article may be shared on reasonable request to the study Chief Investigator, Prof Neil McHugh.Fingerprint
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- 1 Finished
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Psoriatic Arthritis - PROMPT
McHugh, N. (PI) & Nightingale, A. (CoI)
National Institute for Health Research
1/06/15 → 31/05/22
Project: Central government, health and local authorities