Spondyloarthritis & psoriatic arthritis
The Patient Self-Administered Inflammatory Arthritis Detection Study
Authors' conclusion
The results support the utility and feasibility of routine collection of EIAQ and CaFaSpA questionnaires for discriminating patients with IA from those with non-IA.
Study context
- Population
- Newly referred rheumatology patients in British Columbia, Canada
- Participants
- 92 participants
- Comparison
- Early Inflammatory Arthritis Questionnaire (EIAQ) and Case Finding Axial Spondyloarthritis (CaFaSpA) questionnaire predictive scores vs rheumatologist diagnosis (reference standard)
- Outcome
- Discriminatory referral performance for inflammatory arthritis (IA) (AUC, sensitivity, specificity)
Performance
As reported in the abstract
Discrimination of IA vs non-IA
| Test or model | AUC | Sensitivity | Specificity |
|---|---|---|---|
| EIAQ | 0.59 (95% CI 0.49-0.68) | 33% (95% CI 19-51%) | 84% (95% CI 73-91) |
EIAQ
AUC0.59 (95% CI 0.49-0.68)
Sensitivity33% (95% CI 19-51%)
Specificity84% (95% CI 73-91)
- Alternate algorithms based on EIAQ and CaFaSpA questions, AUC up to
- 0.80 (95% CI 0.68-0.90)
Further findings
Diagnosis distribution
| Outcome | TS-IA | Other IA | Non-IA |
|---|---|---|---|
| Time from referral to rheumatologist visit | 44 (IQR 28–83) days | 69 (IQR 40–102) | 65 (IQR 34–99) |
- Time from referral to rheumatologist visit — Longer for women
- + 9 days
- Time from referral to rheumatologist visit — Longer in nonmetropolitan areas
- + 16 days
Original publication
The Patient Self-Administered Inflammatory Arthritis Detection Study. J Rheumatol. Published 1 December 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →