Antiphospholipase A2 Receptor Autoantibodies: A Comparison of Three Different Immunoassays for the Diagnosis of Idiopathic Membranous Nephropathy
Figure 1
Correlation between different diagnostic immunoassays for the detection of anti-PLA2R antibodies. In our cohort of 157 IMN patients and 41 nephrotic disease control patients, a total of 83 samples were positive and 82 were negative by all three methods, a concordance of 77.6% for all three methods. Overall qualitative agreements were 85.9% for CBA-IFA versus ELISA, 96.5% for CBA-IFA versus ALBIA, and 83.3% for ELISA versus ALBIA.
