Fig. 2From: Sustained low disease activity measured by ASDAS slow radiographic spinal progression in axial spondyloarthritis patients treated with TNF-inhibitors: data from REGISPONSERBIOAssociation between disease activity measured by ASDAS-CRP every 6 months with radiographic progression. Radiographic progression was defined as an increase in the mSASSS score at ≥2 points in patients under TNFi treatment during a follow-up period of 3 years. Bold dots and intervals represent means and ± their corresponding standard errors, as provided by a mixed-effects linear model (no other covariates included)Back to article page