Residual Risk of Hepatitis-B-Infected Blood Donations: Estimation Methods and Perspectives

Table 5

Comparison of HBV residual risk (RR) estimates for the first-time and repeat donors.

Residual risk estimation method	HBsAg yield		HBsAg and anti-HBc yield
HBV prevalence	High	Low	High	Low
Repeat donor RR	1 : 7092	1 : 8052	1 : 667	1 : 6929
First-time donor RR	1 : 1533	1 : 1610	1 : 1599	1 : 1610
Estimated RRR^a	12.82	5.00	4.08	4.33
True RRR^b	16.56	17.96	16.56	17.96

^aResidual risk ratio of first-time to repeat donors.
^bBest estimate based on HBV prevalence ratio of first-time to repeat donor.