Table 2

The prevalence of IBP (%) according to different criteria in patients referred because of chronic back pain

AssessorIBP according to…AxSpANo-axSpA
(n=223)
All
(n=403)
AS
(n=88)
nr-axSpA
(n=92)
Blinded rheumatologistGlobal evaluation80.781.556.167.3
Calin’s criteria79.679.474.976.9
Berlin Criteria81.880.467.773.7
ASAS criteria75.073.960.566.8
Diagnosing rheumatologistGlobal evaluation92.188.041.363.0
Calin’s criteria87.582.673.178.4
Berlin criteria85.282.655.268.0
ASAS criteria89.878.364.673.2
PatientCalin’s criteria73.676.779.577.5
Berlin criteria87.485.681.783.8
ASAS criteria79.368.969.071.2
  • AS, ankylosing spondylitis; ASAS, Assessment of SpondyloArthritis international Society; IBP, inflammatory back pain; SpA, spondyloarthritis; nr-axSpA, non-radiographic axial spondyloarthritis.