Table 1 Immunohistochemistry/FISH and immunohistochemistry/CISH concordance

From: Chromogenic in-situ hybridization: a viable alternative to fluorescence in-situ hybridization in the HER2 testing algorithm

Group

Immunohistochemistry result

FISH concordance (%)

CISH concordance (%)

1

0/1+ (n=69)

69/69 (100)

67/69 (97)

2

3+ (n=50)

46/50 (92)

47/50 (94)

3

2+ (n=135)

37/135 (positive)

37/135 (positive)

  

89/135 (negative)

89/135 (negative)

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