Background: The albumin to fibrinogen ratio (AFR) and C-reactive protein to albumin ratio (CAR) have emerged as useful biomarkers of systemic inflammation. The aim here was to investigate the relation between AFR/CAR and ASDAS-ESR Score in ankylosing spondylitis (AS).Methods: This case control study included 30 patients with AS and 30 healthy controls. We calculated CAR and AFR in each group and c...