Clinical Performance of the Automated LIAISON® Meridian H. pylori SA Stool Antigen Test

Table 4

Reproducibility of the LIAISON® Meridian H. pylori SA test assessed over 5 days at multiple sites.

	Mean index value	Within run		Day to day within site		Site to site		Total
		SD	%CV	SD	%CV	SD	%CV	SD	%CV
Neg Ctrl	0.07	0.004	5.10%	0.002	2.10%	0.009	12.50%	0.010	13.90%
Pos Ctrl	4.80	0.076	1.60%	0.063	1.30%	0.105	2.20%	0.153	3.10%
Mod Pos sample #1	2.12	0.034	1.60%	0.108	5.10%	0.119	5.60%	0.168	8.00%
Mod Pos sample #2	2.37	0.049	2.10%	0.156	6.60%	0.226	9.50%	0.283	11.90%
High Neg sample #1	0.69	0.024	3.50%	0.037	5.40%	0.065	9.40%	0.081	11.80%
High Neg sample #2	0.69	0.023	3.30%	0.019	2.70%	0.065	9.40%	0.077	11.00%
Low Pos sample #1	1.21	0.031	2.50%	0.029	2.40%	0.093	7.70%	0.109	9.00%
Low Pos sample #2	1.20	0.021	1.70%	0.056	4.70%	0.120	10.10%	0.138	11.50%