## Abstract The present study was performed on 61 HLAβB27 positive firstβdegree relatives and 40 HLAβB27 negative relatives of 20 HLAβB27 positive probands with ankylosing spondylitis (AS). Of 24 HLAβB27 positive relatives 45 years or older, 21% had AS and 38% sacroiliitis. The HLAβB27 negative rel
Use of the B27 test in the diagnosis of ankylosing spondylitis: a statistical evaluation
β Scribed by Brian R. Hawkins; Roger L. Dawkins; Frank T. Christiansen; Paul J. Zilko
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 331 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0004-3591
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Computed tomography (CT) was compared with plain radiography and quantitative sacroiliac (SI) scintigraphy in 28 patients with early ankylosing spondylitis (AS) of 510 years duration. Compared with conventional radiography, CT improved delineation of the SI joints and revealed more abnormalities and
## Abstract ## Objective To evaluate the smallest detectable difference (SDD) of symptomatic outcome or process variables in ankylosing spondylitis (AS) patients from various countries. ## Methods Thirty consecutive AS patients with axial involvement were recruited from 1 center in each of 4 cou