. 2013 Jul 25;193(2):492–497. doi: 10.1016/j.jviromet.2013.07.027

Table 3.

Differences among blood collection tubes in the ExiStation HBV diagnostic system.

Samples	Mean value of HBV DNA in SST tubes (log₁₀ IU/mL)	Mean value of HBV DNA in EDTA tubes (log₁₀ IU/mL)	Mean value of HBV DNA in citrate tubes (log₁₀ IU/mL)
HBV DNA positive samples (n = 25); median (25th percentile, 75th percentile)	2.840 (1.929, 3.908)^a	3.039 (2.252, 3.872)^a	2.881 (2.384, 3.808)^a
HBV DNA negative samples (n = 25)	ND	ND	ND

ND, not detected.

No significant differences among three groups by Friedman test.