Table 2.

Independent associations between urinary levels of AP and CP/LP activation fragments and terminal pathway C5a

	Standardized β	P
Focal and segmental glomerulosclerosis, r2: 0.52
Ba	0.59	0.003
C4a	0.36	0.047
Membranous nephropathy, r2: 0.86
Ba	0.67	<0.001
C4a	0.48	<0.001
IgA nephropathy, r2: 0.89
Ba	0.73	<0.001
C4a	0.31	<0.001
Lupus nephritis, r2: 0.83
Ba	0.72	<0.001
C4a	0.35	0.009
ANCA-associated vasculitis, r2: 0.71
Ba	0.21	0.13
C4a	0.77	<0.001

ANCA, antineutrophil cytoplasmic autoantibody; AP, alternative pathway; CP, classical pathway; LP, lectin pathway.

C4a and Ba correspond to CP/LP and AP activation fragments, respectively.