Table 1

Noise band crossing points for LightCycler^TM PCR amplification of HBV DNA or HCV RNA at concentrations of 2.5 million copies/ml processed by the nucleic acid extraction kits

Virus	Extraction kit	Noise band crossing points			Mean
HBV, hepatitis B virus; HCV, hepatitis C virus.
HBV	QIAamp viral RNA	21.57	20.55	21.86	21.33
	QIAamp blood DNA	16.43	16.29	15.94	16.22
	NucleoSpin virus	20.19	18.72	18.42	19.11
	High Pure viral RNA	19.98	19.79	19.94	19.90
	High Pure viral nucleic acid	15.13	16.14	15.25	15.51
HCV	QIAamp viral RNA	27.98	28.08	28.23	28.10
	QIAamp blood DNA	27.57	27.74	27.65	27.65
	NucleoSpin virus	36.23	35.23	35.05	35.5
	High Pure viral RNA	29.37	30.05	28.6	29.34
	High Pure viral nucleic acid	27.23	27	27.94	27.39