Table 1

 Main characteristics of patients and tissue samples

SubjectAge (years)DiagnosisDisease duration (years)x Ray grade SIJHLA-B27SynoviumBMCTCart
SIJ, sacroiliac joints; BM, bone marrow; CT, connective tissue; Cart, cartilage; Co, control; Pat, patient with AS; NB, neuroblastoma; NA, not applicable; ND, not done; RBM, reactive bone marrow; AS, ankylosing spondylitis.
Co 118NBNA0ND++++
Co 234RBMNANAND++
Co 329RBMNANAND+
Pat 120AS<11+++++
Pat 219AS13+++++
Pat 320AS23ND+++
Pat 428AS33ND+++
Pat 532AS73ND+++