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

x ²=0.50, p > 0.05; κ = 0.95, p < 0.001.