Table 1: Laboratory and disease activity data of 13 GPA patients with PCT assessment at active and inactive stage of disease (mean±SD). For ANCA titers medians are given. In 12 patients C-ANCA and in one patient P-ANCA were detected

Active Remission Adjusted p-Value
BVAS 18.15±7.2 0±0 0.0018
DEI 7.46±3.2 0.46±0.85 0.0018
VDI 0.62±1.26 1.54±1.39 0.0702; ns
CRP, mg/dl 6.08±6.19 0.92±0.92 0.0063
ESR, mm/h 62±31 21±18 0.0045
leukocytes/nl 10.5±3.3 6.9±2.9 0.081; ns
PCT, ng/ml 0.07±0.07 0.05±0.01 4.5144; ns
creatinine, mg/dl 1.4±1.5 1.1±0.4 3.0024; ns
ANCA 1:1280 1:160 0.0612; ns