Table 3.

Detection performance of the ECLIA and protein microarray in measuring serum AFP levels and AFP-L3%

		ECLIA
		AFP levels ≥20 ng/mL	AFP levels > 0 and < 20 ng/mL	Total	Kappa value	P value
Protein microarray	AFP levels ≥20 ng/mL	33	0	33	1	<0.001
	AFP levels > 0 and< 20 ng/mL	0	39	39
	Total	33	39	72
		ECLIA
		AFP-L3% ≥10%	AFP-L3% > 0% and < 10%	Total	Kappa value	P value
Protein microarray	AFP-L3% ≥10%	33	2	35	0.97	<0.001
	AFP-L3% > 0% and < 10%	1	36	37
	Total	34	38	72

The Kappa test showed that there was good consistency between the protein microarray and ECLIA in detecting AFP levels and AFP-L3%. ECLIA: electrochemiluminescence immunoassay; AFP: alpha-fetoprotein; AFP-L3%: percentage of AFP-L3 in total AFP.