Fig. 2From: Differential long-term retention of biological disease-modifying antirheumatic drugs in patients with rheumatoid arthritis by age group from the FIRST registryThree-year retention rates of bDMARDs in adjusted data using inverse probability of treatment weighting. Three-year retention rates of bDMARDs in all patients (a), in patients aged < 65 years (b), in patients aged 65–74 years (c), and in patients aged ≥ 75 years (d). yr = years; TNFi = tumor necrosis factor inhibitors; ABA = abatacept; TCZ = tocilizumabBack to article page