Diagnostic accuracy of recently proposed criteria for inflammatory back pain (IBP) in suspected ankylosing spondylitis (AS) and early axial spondyloarthritis (axial SpA)
Completed
- Conditions
- Ankylosing spondylitis (AS), early axial spondyloarthritis (axial SpA)Musculoskeletal DiseasesAnkylosing spondylitis
- Registration Number
- ISRCTN66488490
- Lead Sponsor
- Charite - University Medicine Berlin (Charite - Universitatsmedizin Berlin) (Germany)
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 550
Inclusion Criteria
Patients (aged greater tha 18 years, either sex) with chronic back pain (greater than 3 months) of unknown origin:
1. Referred to the rheumatologist because of suspected AS/axial SpA
2. Seen by primary care physicians/orthopaedists, who agree to subsequently be referred to the rheumatologists
Exclusion Criteria
Patients with a definite diagnosis (cause) related to their back pain.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Sensitivity, specificity and positive likelihood-ratio (LR+) if two out of four parameters of IBP are present.
- Secondary Outcome Measures
Name Time Method Sensitivity, specificity and positive likelihood-ratio (LR+) if three or four out of four parameters of IBP are present.