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Leica Biosystems Leica HER2 FISH System - 30 Test Instructions for Use TA9217 EN-CE-Rev_D 08/04/2013
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2x2 Concordance Results Leica BOND-MAX System
Data was grouped as negative (<2.00) or positive (≥2.00) for a 2x2 analysis The observed
agreement for 300 samples between the two tests in a 2x2 analysis show a concordance of
99.33% (298/300) with a 95% CI of 97.61–99.92% for the Leica BOND-MAX System
The percentage Positive Agreement (sensitivity) or the ability of the Leica HER2 FISH System
- 30 Test to correctly identify Abbott Molecular PathVysion HER-2 DNA Probe assay positive
cases (the percentage of specimens scored positive by both the Leica HER2 FISH System -
30 Test and manual Abbott Molecular PathVysion HER-2 DNA Probe Kit out of all the Abbott
Molecular PathVysion HER-2 DNA Probe Kit positive cases) was 99.03% (102/103).
The percentage Negative Agreement (specicity) or the ability of the test to correctly identify
Abbott Molecular PathVysion HER-2 DNA Probe Kit negative cases (the percentage of
specimens scored negative by the Leica HER2 FISH System - 30 Test and Abbott Molecular
PathVysion
HER-2 DNA Probe Kit out of all the Abbott Molecular PathVysion HER-2 DNA Probe
Kit negative cases) was 99.49% (196/197). See Table 4.
Abbott Molecular PathVysion HER-2 DNA Probe Kit
Negative (<2.0) Positive (≥2.0) Totals
Leica HER2 FISH
System - 30 Test
Leica BOND-MAX
Negative (<2.0)
196 1 197
Positive (≥2.0)
1 102 103
Totals
197 103 300
Overall Concordance (95% CI) = 99.33% (97.61 – 99.92%)
Table 4. 2x2 concordance of Leica HER2 FISH System - 30 Test on the Leica BOND-MAX System with Abbott Molecular
PathVysion HER-2 DNA Probe Kit.