TABLE 4.

Relative analytical sensitivity of NAT systems on (dilutions of) the Eurohep HBV DNA genotype A2 standard, Ultrio HBV NAT–yield samples, and HBsAg-positive and Ultrio initially nonreactive samples as determined by parallel line probit analysis

Panel	Sensitivity (CI)
	TaqScreen relative to Ultrio	Ultrio Plus relative to Ultrio	TaqScreen relative to Ultrio Plus
Eurohep standard	4.21 (2.01–9.98)	2.09 (1.21–3.87)	2.01 (1.02–4.23)
HBV NAT yields	2.32 (1.72–3.18)	2.46 (1.97–3.13)	0.94 (0.71–1.26)
HBsAg yields	93.9 (17.8–1135)	43.1 (10.7–350)	1.60 (0.89–3.10)