We also studied the correlation between CIMT and Bath ankylosing spondylitis disease activity index (BASDAI), Bath ankylosing spondylitis functional index (BASFI), and Bath ankylosing spondylitis metrological index (BASMI) scores and C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) and HLA B-27 status. This evidence concerns the gene CRP and ankylosing spondylitis.