Table 3.

Concordance between immunohistochemical assessment at local, central, and ASCO/CAP reference laboratory immunohistochemical assessment and microarray readout of 100 breast tumor samples (cohort 3)

nERPRHER2
ConcordanceκConcordanceκConcordanceκ
Local vs central immunohistochemistry960.940.860.890.770.960.87
Local vs reference immunohistochemistry870.990.970.900.790.940.88
Local immunohistochemistry vs microarray1000.920.820.840.670.930.85
Central vs reference immunohistochemistry840.940.870.940.880.950.89
Central immunohistochemistry vs microarray960.930.820.810.610.950.89
Reference immunohistochemistry vs microarray870.920.820.860.720.940.87
Microarray vs microarray881.001.000.970.931.000.98