Table 3.

Agreement between different IgG and IgM testing methods (pooled data).

Ig Method		IgG Qualitative (ABBOTT)	IgG quantitative 1 (AESKU)	IgM quantitative 1 (AESKU)	IgG quantitative 2 (ANSH)	IgM quantitative 2 (ANSH)
IgG qualitative (ABBOTT)	Kappa	–	0.74	0.18	0.66	0.42
	P value		<0.001*	0.033*	<0.001*	<0.001*
IgG quantitative 1 (AESKU)	Kappa	0.74	–	0.30	0.86	0.53
	P value	<0.001*		0.003*	<0.001*	<0.001*
IgM quantitative 1 (AESKU)	Kappa	0.18	0.30	–	0.23	0.25
	P value	0.033*	0.003*		0.010*	0.049*
IgG quantitative 2 (ANSH)	Kappa	0.66	0.86	0.23	–	0.50
	P value	<0.001*	<0.001*	0.010*		<0.001*
IgM quantitative 2 (ANSH)	Kappa	0.42	0.53	0.25	0.50	–
	P value	<0.001*	<0.001*	0.049*	<0.001*

*Statistically significant result (p < 0.05).

Bold values mean statistically significant P values.