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. 2019 Aug 15;14(8):e0221123. doi: 10.1371/journal.pone.0221123

Table 4. Performance of BRAF and NRAS testing by IHC and Idylla compared to in-house assay.

  BRAF IHC BRAF Idylla NRAS Idylla
True positive 14 21 15
False positive 0 0 0
True negative 38 41 20
False negative 3 0 3
Total 55 62 38
Positive Predictive Value 100% 100% 100%
Negative Predictive Value 93% 100% 87%