Table 3. Agreement between p53 immunohistochemistry and TP53 NGS analysis.
p53 IHC | (Likely) pathogenic mutation on TP53 NGS analysis | |||
---|---|---|---|---|
All EC | POLE wildtype and MMR proficient EC | |||
Absent | Present | Absent | Present | |
Total | 228 | 116 | 102 | 80 |
Specificity | 94.3% (95% CI 91.8-96.7%) | 94.1% (95% CI 88.9-99.3%) |
Abbreviations: IHC, immunohistochemistry; NGS, next generation sequencing; EC, endometrial cancer; MMR, mismatch repair; CI, confidence interval
In bold, EC with concordant p53 IHC and sequencing for TP53 mutations