Figure 2From: Antibodies toward infliximab are associated with low infliximab concentration at treatment initiation and poor infliximab maintenance in rheumatic diseasesInfliximab concentrations at initiation in ATI pos and ATI neg patients. Box plots show the medians and interquartile ranges, and whisker plots represent the 95th percentiles. ATI: antibodies toward infliximab; ATIpos: ATI detected at least once during follow-up; ATIneg: ATI not detected; RA: rheumatoid arthritis; SpA: spondyloarthritis.Back to article page