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Table 1 Demographic and clinical characteristics of the 71 patients with SAPHO syndrome

From: Anterior chest wall in SAPHO syndrome: magnetic resonance imaging findings

Demographic and clinical characteristics (n = 71)  
Demographic characteristics
 Sex, female/male 55/16
 Age at imaging, mean (S.D.), years 44.0 (12.1)
 Age at onset of osteoarticular symptoms, mean (S.D.), years 49.0 (10.6)
 Age at onset of skin lesions, mean (S.D.), years 40.2 (10.2)
 Duration of disease, mean (S.D.), months 51.3 (9.9)
 Age at SAPHO diagnosis, mean, (S.D.), years 44.0 (12.3)
 Duration of diagnosis, mean (S.D.), years 4.0 (5.0)
Clinical characteristics, number (%)
 Anterior chest pain 71 (100.0)
 Spinal or sacroiliac pain 52 (73.2)
 Peripheral skeletal pain 41 (57.7)
 Skin manifestations
  None 7 (9.9)
  Palmoplantar pustulosis 59 (83.1)
  Severe acne 5 (7.0)
Laboratory findings
 ESR, median (range), mm/h 17 (2–91)
 hs-CRP, median (range), g/l 4.24 (0.41–57.63)
 ESR or hs-CRP elevated, number (%) 45 (63.4)
 ANA positive, number (%) 5 (7.0)
 RF positive, number (%) 2 (2.8)
 HLA-B27 positive, number (%) 4 (5.6)
Whole-body bone scintigraphy
 Anterior chest wall 71 (100)
 Spine 43 (60.6)
 Sacroiliac joint 28 (39.4)
 Peripheral skeleton 22 (31.0)
 Skull 9 (12.7)
 Pelvis 3 (4.2)
  1. ESR erythrocyte sedimentation rate, hs-CRP high-sensitivity C-reactive protein, ANA antinuclear antibody, RF rheumatoid factor, HLA-B27 human leukocyte antigen-B27