Table 2

EGFR status detected by NGS analyses

Case	NGS
Case	Tumour cells (%)	I mutation	Exon	AF (%)	II mutation	Exon	AF (%)
1	>70	G719C	18	42	S768I	20	39
2	90	E746_A750delELREA	19	82
3	>70	E746_A750delELREA	19	25
4	60	L858R	21	28	T790M	20	27
5	>70	E746_A750delELREA	19	8	S768I	20	8
6	30	WT
7	>70	WT
8	>70	E746_A750delELREA	19	18
9	>70	L858R	21	26
10	30	L858R	21	23
11	50	L858R	21	30
12	>70	L858R	21	39
13	70	L858R	21	64
14	70	E747_T751delLREAT	19	62	T790M	20	43
15	70	L747_P753>S	19	13
16	60	L858R	21	53
17	30	L858R	21	17
18	>70	E746_T751>A	19	27	T790M	20	29
19	80	E746_A750delELREA	19	44
20	20	L858R	21	16

AF, allele frequency; NGS, next-generation sequencing; WT, wild type.