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Table 6 Precision of the Aptima Assay

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

Matrix

Na

Mean Concentration (log IU/mL)

Inter-Operator

Inter-Instrument

Inter-Lot

Inter-Run

Intra-Run

Total

SD

CV (%)

SD

CV (%)

SD

CV (%)

SD

CV (%)

SD

CV (%)

SD

CV (%)

Plasma

98

1.23

0.00

0.00

0.00

0.00

0.04

3.35

0.06

4.54

0.12

9.84

0.14

11.34

Plasma

162

2.06

0.00

0.00

0.05

2.23

0.07

3.20

0.03

1.47

0.10

4.91

0.14

6.88

Plasma

162

3.02

0.01

0.24

0.03

0.89

0.04

1.47

0.01

0.33

0.09

3.08

0.11

3.77

Plasma

162

4.87

0.00

0.00

0.00

0.00

0.03

0.60

0.04

0.86

0.06

1.13

0.10

2.04

Plasma

162

7.16

0.01

0.20

0.02

0.21

0.04

0.52

0.00

0.00

0.05

0.75

0.09

1.27

Serum

132

1.27

0.00

0.00

0.00

0.00

0.07

5.16

0.00

0.00

0.15

12.17

0.17

13.31

Serum

162

2.17

0.04

1.71

0.02

0.99

0.07

3.01

0.05

2.15

0.08

3.53

0.12

5.61

Serum

162

3.09

0.00

0.00

0.02

0.67

0.06

1.79

0.03

0.90

0.07

2.26

0.11

3.44

Serum

161

4.86

0.04

0.78

0.00

0.00

0.08

1.67

0.00

0.00

0.08

1.72

0.13

2.65

Serum

162

7.16

0.05

0.70

0.00

0.00

0.05

0.73

0.02

0.31

0.04

0.55

0.10

1.35

  1. aNumber of valid results within range of the assay