Table 4.

Progression over time of IgM and IgG levels by testing method (pooled data).

Time from first positive rt-PCR (days)	IgG Qualitative (ABBOTT)		Quantitative 1 (AESKU)				Quantitative 2 (ANSH)
	Mean	SD	IgG		IgM		IgG		IgM
			Mean	SD	Mean	SD	Mean	SD	Mean	SD
0-4	3.09	2.89	41.72	46.98	3.43	4.09	239.57	728.26	8.28	5.56
5-9	6.10	3.04	59.49	44.42	14.65	13.90	329.60	769.18	17.16	12.25
10-15	6.02	2.95	71.71	44.25	27.46	34.86	422.09	881.74	26.45	29.42
>15	7.01	1.58	100.00	0.00	9.19	12.13	1786.55	1336.14	14.96	9.10
P value	0.001*		0.021*		0.029*		0.002*		0.073

Test used, OneWay ANOVA; *statistically significant difference (P <0.05).

Bold values mean statistically significant P values.