Table 2: Summary of concordant rates from literature review.
|
Total cases |
Total IHC/FISH positive cases |
HER 2 IHC/FISH positive concordance |
Total IHC/FISH negative/equivocal cases |
HER2 IHC/FISH negative concordance |
Overall HER2 concordance |
|
|
Sughayer et al. 2020 [22] |
113 |
0 |
ND |
113 |
99.1% |
99.1% |
|
Chang et al. 2018 [24] (separate IHC and FISH results) |
30 |
0 |
ND |
30 |
100 (IHC)/93.3 (FISH)% |
100/93.3% |
|
Neely et al. 2018 [23] |
610 |
5 |
20% |
558 |
100% |
98.6% |
|
Park et al. 2014 [25] (FISH only) |
265 |
2 |
0% |
245 |
100% |
99.2% |
|
Dvorak et al. 2013 [26] (FISH only) |
194 |
8 |
50% |
186 |
100% |
96% |
|
Dabbs et al. 2011 [27] |
843 |
36 |
42% |
784 |
99% |
98% |
IHC: Immunohistochemistry; ODX: Oncotype DX; RT-PCR:
Reverse Transcription-Polymerase Chain Reaction; IHC+: Positive by IHC stain;
IHC-: Negative by IHC stain; FISH: Fluorescence In Situ Hybridization; HER2:
Human Epidermal Growth Factor Receptor 2; ND: No Data.