Table 3 PR 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 PR

GHI qRT-PCR positive for PR

Total

Immunohistochemistry negative for PR

28

7

35

Immunohistochemistry positive for PR

34

395

429

Total

62

402

464

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