Table 1

Demographic and clinical characteristics of patients with spondyloarthritis (SpA) and controls

SpA without heel painSpA with history of heel painSpA with current heel painControls
N25131324
N (%) male13 (52)9 (69)10 (81)12 (50)
Age, years median (Q1–Q3)45 (35–64)50 (37–59)43 (39–49)50 (42–55)
Symptom duration, years, median (Q1–Q3)18 (5–21)11 (8–22)18 (9–26)NA
B27 positivity87%75%77%NA
Current axial symptoms76%61%69%NA
Sacroiliitis71%50%70%NA
Psoriasis8%23%23%NA