Table 1.

Characteristics and comparison of the population with EGFR mutations.

Characteristics	EGFR mutation (n=417)	p Value
Gender
Male	168	0.036
Female	249
Age, years		0.072
<60	212
≥60	205
Single EGFR mutation		0.029
Exon 19 deletion	187
Exon 21 L858R	189
Exon 20 insertion	11
Exon 21 L861Q	14
Other types	7
Double EGFR mutation		0.082
L858R+T790M	5
L858R+S768I	1
G719X+S768I	2
19del+T790M	1