TABLE 7.

Standard deviation for cobas HIV-1 cobas 5800 and 6800

		Observed concn (mean log10 copies/mL)		SD (log10 copies/mL)
Panel member	Platform		N	Site	Day	Between run	Within run	Total
1	5800	6.90	89	0.034	0.034	-a	0.066	0.081
	6800	6.92	90	-	0.014	-	0.066	0.067
2	5800	5.65	90	0.027	-	0.033	0.059	0.073
	6800	5.62	90	-	-	-	0.060	0.060
3	5800	4.95	90	0.011	0.017	0.022	0.067	0.073
	6800	4.92	90	0.006	0.007	0.019	0.048	0.052
4	5800	2.89	90	-	0.035	0.048	0.077	0.097
	6800	2.86	90	0.027	0.021	-	0.076	0.083
5	5800	2.23	89	0.041	-	0.047	0.137	0.151
	6800	2.22	89	-	-	-	0.106	0.106
6	5800	1.72	90	0.050	-	0.095	0.146	0.181
	6800	1.66	89	0.055	0.067	-	0.232	0.248
7	5800	1.29	88	0.026	0.023	0.067	0.335	0.343
	6800	1.29	83	-	-	0.103	0.309	0.325

^aHyphen (“-”) indicates that this component does not contribute to the total observed variance.