Table 3. Verification results of the ADx-SuperARMS EGFR assays.

Mutation	ΔCt value cut-off for positive calling	Mean ΔCt value from 0% of mutant in total DNA	Mean ΔCt value from 5% of mutant in total DNA	Mean ΔCt value from 1% of mutant in total DNA	Mean ΔCt value from 0.2% of mutant in total DNA	Mean ΔCt value from 0.1% of mutant in total DNA
E19Del	11	No ΔCt	6.3	8.8	10.6	11.6
L858R	11	No ΔCt	6.4	8.1	10.7	11.4
T790M	8	No ΔCt	2.7	4.4	7.2	10.8

EGFR, epidermal growth factor receptor; E19Del: exon 19 deletion.