Table 1 ER concordance between immunohistochemistry (on core biopsy) versus GHI qRT-PCR (on resection specimen)

From: Semi-quantitative immunohistochemical assay versus oncotype DX® qRT-PCR assay for estrogen and progesterone receptors: an independent quality assurance study

 

GHI qRT-PCR negative for ER

GHI qRT-PCR positive for ER

Total

Immunohistochemistry negative for ER

1

0

1

Immunohistochemistry positive for ER

6

457

463

Total

7

457

464

  1. ER, estrogen receptor; GHI, Genomic Health; qRT-PCR, quantitative reverse transcription polymerase chain reaction.
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