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Table 2 Disposition of study cases

From: A gene-protein assay for human epidermal growth factor receptor 2 (HER2): brightfield tricolor visualization of HER2 protein, the HER2 gene, and chromosome 17 centromere (CEN17) in formalin-fixed, paraffin-embedded breast cancer tissue sections

Parameter Count Reader A Reader B Reader C
  n n (%) n (%) n (%)
Total number of tissue cores 189    
Number of tissue cores without tumor 6    
Number of cores with tumor 183    
Number of cores with evaluable gene-protein IHC results   183 (100.0) 183 (100.0) 183 (100.0)
Number of cores with evaluable single IHC results   183 (100.0) 183 (100.0) 183 (100.0)
Number of cores with evaluable gene-protein BISH results   179 (97.8) 179 (97.8) 180 (98.4)
Number of cores with evaluable single BISH results   166 (90.7) 172 (94.0) 173 (94.5)
  1. IHC: immunohistochemistry; BISH: brightfield in situ hybridization.