Table 1. Studies on mismatch repair (MMR) status and breast cancer.
| Authors | Ref. | Year | Testing method | Nr. of patients | dMMR (%) |
|---|---|---|---|---|---|
| Cheng et al. | (6) | 2020 | IHC | 1,635 | 1.9 |
| Lopez et al. | (7) | 2020 | IHC | 608 | 13.3 |
| Fusco et al. | (8) | 2018 | IHC & MSI | 444 | 17 |
| Lee et al. | (9) | 2019 | Sanger Sequencing, IHC, MSI | 94 | 3.2 |
| Le et al. | (10) | 2017 | NGS | N/A | <2 |
| Davies et al. | (11) | 2017 | WGS | 640 | 1.7 |
dMMR, MMR deficiency; IHC, immunohistochemistry; MSI, microsatellite instability; NGS, next-generation sequencing; WGS, whole-genome sequencing.