Table 1.

Sociodemographic features of patients with axial involvement from the RESPONDIA group.

VariablesAS, n = 1072Psoriatic Spondylitis, n = 147IBD Spondylitis, n = 45p
Male, n (%)817 (76)85 (58)22 (49)0.01
Age, yrs, median (IQR)42 (33–50)48 (40–58)49 (40–57)0.01
Disease duration at diagnosis, yrs, median (IQR)6 (2–12)6 (2–11)4 (2–8)NS
Disease duration at first symptom, yrs, median (IQR)14 (7–23)10.5 (5–17)7 (4–15)0.01
SpA family history, n (%)199 (19)25 (17)5 (11.1)NS
Work disability, n (%)67 (6.3)10 (6.8)0NS
  • AS: ankylosing spondylitis; IBD: inflammatory bowel disease; SpA: spondyloarthropathy; IQR: interquartile range; NS: nonsignificant.