Anti-Phospholipase A2 Receptor Antibody Expression at Different Stages of Idiopathic Membranous Nephropathy

Table 2

Correlation of blood anti-PLA₂R levels with renal biopsy levels of stages I, IV, and V.

Blood	Renal biopsy
	Positive (± to +)	Negative	Total
Positive (± to +)	41	0	41
Negative	2	37	39
Total	43	37	80

, ; κ = 0.95, .