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(A) Frequency of NPNS, IP, S, and surgery among the different antibody sum groups. Sum calculated based on the presence or absence of anti-CBir1, anti-OmpC, ASCA, and pANCA. P trend <.0001. (B) Frequency of NPNS, IP, S, and surgery among the different quartile sum score groups; P trend <.0001.
Reproduced with permission from Dubinsky et al.59
