Table 1

Interobserver agreement of HER-2 amplification by CISHa

Observer 1 (M. T.)Observer 2 (J. I.)
Not interpretablebNo amplificationAmplification
Not interpretableb030
No amplification2861
Amplification00100
  • a CISH, chromogenic in situ hybridization.

  • b Poor quality hybridization or otherwise not interpretable.