Table 1.

Limit of detection of the ExiStation HBV diagnostic system.

NIBSC standard HBV DNA concentration (IU/mL)	Positive No. (%) of replicates (n = 24)
1000	24 (100)
333.3	24 (100)
111.1	24 (100)
37.0	24 (100)
12.3	23 (95.8)
4.1	20 (83.3)
1.03	10 (41.6)
0.52	5 (20.8)

Detection limit by probit analysis: 9.55 IU/mL (95% confidence interval: 4.68–19.50 IU/mL).