Characterization of Patients With Ankylosing Spondylitis and Nonradiographic Axial Spondyloarthritis in the <scp>US</scp>‐Based Corrona Registry

Abstract

This was the first nationwide study to characterize patients with AS and nonradiographic axial SpA in the US. Consistent with studies published outside of the US, this study showed that patients with nonradiographic axial SpA and patients with AS shared a comparable degree of disease burden and had similar treatment patterns in clinical practice.