Table 1.

Investigation of complement components

	C3 Ag	C4 Ag	Factor B Ag	Factor H Ag	Factor I Ag			CD46
Normal values	660–1250 mg/L²	93–380 mg/L²	90–320 mg/L²	65–140%³	70–130%³	Anti-FH Ab	C3 NeF	MFI5
Sample 1	220	377	178	117	114	N	Positive	na
Sample 2	735	297	155	117	121		Negative	938
Sample 3	582	381	208			N	Negative	NA
Sample 4	462	609	389			N	Negative	NA
Sample 5	436	637	305			N	Negative	NA
Sample 6	225	318	144	119	135	N	NA	NA