Table 1

Classification of spondyloarthropathies using ESSG criteria17

Sensitivity 87%; specificity 87%.
ESSG, European Spondylarthropathy Study Group; IBD, inflammatory bowel disease.
Inflammatory spinal (back) pain
OR
Synovitis (asymmetric, predominantly in lower extremities)
PLUS at least one of the following:
    Alternating buttock pain
    Sacroiliitis
    Heel pain (enthesitis)
    Positive family history
    Psoriasis
    IBD (Crohn’s disease, ulcerative colitis)
    Urethritis/acute diarrhoea in preceding 4 weeks