Table 2.

EGFR mutation detection by BEAMing and NSCLC disease classification (n = 75)

EGFR MutationDisease classificationPatients with mutationaSubset with mutation in plasmaPercentagePb
Activating mutationsM1a/M018739%
M1b555295%<0.001
T790MM1a/M015427%
M1b494796%<0.001
  • aIncludes patients with an EGFR mutation detected in tissue only, plasma only, or both tissue and plasma.

  • bFisher exact test used for comparisons.