Table 2.

Contingency table of microarray readout by microarray and central immunohistochemistry of ER, PR, and HER2 on all validation samples

Central immunohistochemistry +Central immunohistochemistry −Total(95% CI)
ER
    Microarray +35818376Concordance93%91-95%
    Microarray −158499κ0.790.72-0.85
PR
    Microarray +24753300Concordance83%80-86%
    Microarray −26149175κ0.650.58-0.71
HER2
    Microarray +851095Concordance96%94-98%
    Microarray −8364372κ0.880.81-0.92