Figure 1From: Elevated serum anti-flagellin antibodies implicate subclinical bowel inflammation in ankylosing spondylitis: an observational studyPositivity rates of all antibodies. AS-IBD, ankylosing spondylitis-inflammatory bowel disease; AS, ankylosing spondylitis; MBP, mechanical back pain; Ig, immunoglobulin; ASCA, anti-Saccharomyces cerevesiae antibody; Anti-OmpC, anti-outer membrane porin C; Anti-CBir-1, anti-flagellin; ANCA, anti-neutrophil cytoplasmic antibody.Back to article page