Skip to main content
. 2019 Jun;8(3):736–751. doi: 10.21037/tcr.2019.04.10

Table 16. Stage differences in EGFR gene mutation types.

Gene mutation types IV Non-IV P value
Cases Mutation rate (%) Cases Mutation rate (%)
Exon 19 25 55.56 0 0 0.0502
Exon 20 12 26.67 0 0 0.5599
Exon 21 16 35.56 3 75.00 0.2848
Amplification 11 24.44 2 50.00 0.2839