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Table 7 Parameters from Aptima, Abbott and Roche Method Comparisons

From: Analytical characteristics and comparative evaluation of Aptima HCV quant Dx assay with the Abbott RealTime HCV assay and Roche COBAS AmpliPrep/COBAS TaqMan HCV quantitative test v2.0

Parameter

Aptima vs Abbott

Aptima vs Roche

Abbott vs Roche

n

1058

608

611

R2

0.98

0.96

0.97

slope

1.06

1.05

1.00

95% CI for slope

1.04 to 1.07

1.03 to 1.07

0.98 to 1.01

Intercept

0.08

−0.12

−0.25

95% CI for intercept

0.03 to 0.13

−0.2 to −0.04

−0.32 to −0.19

average bias

0.34

0.11

−0.27

95% acceptability limits

−0.20 to 0.88

−0.57 to 0.79

−0.79 to 0.25