TABLE 3.

Mean results achieved with each quantitative PCR method using the lowest concentration of standard from each manufacturer^a

Standard	Mean (SD) (log10 IU/ml) for:
	Bio-Rad	RainDanceb	Altona	Abbott	Qiagen
AcroMetrix	1.96 (0.02)c	1.88 (0.35)c	2.43 (0.40)	2.44 (0.29)	2.26 (0.04)
SeraCare	3.01 (0.20)	2.87 (0.37)	3.50 (0.17)	2.56 (0.16)	2.94 (0.14)
ZeptoMetrix	2.09 (0.20)c		1.74 (0.37)c	1.72 (0.31)	1.65 (0.24)c

^aThe lowest concentrations were 2.48 log₁₀ IU/ml for AcroMetrix and 2.70 log₁₀ IU/ml for ZeptoMetrix and SeraCare. Qiagen was compared against 2.71 log₁₀ copies/ml for AcroMetrix, 2.00 log₁₀ copies/ml for ZeptoMetrix, and 2.70 log₁₀ copies/ml SeraCare.

^bNo replicates were detected for ZeptoMetrix from RainDance.

^cn = <4 replicates detected and used.