Regarding the TCs, at baseline, the majority included men (53.1%), median age was 42 years (IQR, 33–51), median disease duration was 9 years (IQR, 4–18), and median Ankylosing Spondylitis Disease Activity Score (ASDAS-CRP) was 3.3 (IQR, 2.6–3.9) (Table 1). Here, CRP is linked to spondylitis.