FIG. 4.
Deming regression comparison of Digene HC2 assay and COBAS Amplicor HBV Monitor assay. One-hundred samples previously tested using the HC2 assay were tested undiluted in the Amplicor assay. Samples with results greater than 200,000 HBV DNA copies/ml were diluted and retested. Deming regression (solid line) was as follows: Amplicor = 1.197(HC2) − 0.961; R2 = 0.799, SEE = 0.710, n = 94. The dashed line represents identity.