Figure 2: Percentages of individuals in the subgroups of the axSpA group, with (mNYc+) and without (mNYc-) radiographic lesions. IgG (A) and IgM (B) seropositive for ≤1 and ≥2 of the microbial agents, C. pneumoniae, C. trachomatis, B. Burgdorferi, B. afzelii, B. garinii and Ehrlichia. Significance is reported with the following convention: **p < 0.01. axSpA: axial spondyloarthritis; mNYc+: fulfilling modified New York criteria; mNYc-: not fulfilling modified New York criteria.