Table 3.

Information of gene mutation status

Gene	Exon	Amino acid change	Nucleotide change	N (%)
EGFR	18	G719A	2156G>C	1 (0.64)
		G719S	2155G>A	1 (0.64)
	19	E746_A750del	2235–2249 del 15	43 (28.1)
		E746_A750del	2236–2250 del 15	5 (3.27)
		L747_P753>S	2240–2257 del 18	17 (11.1)
		E746_T751>A	2237–2251 del 15	1 (0.64)
		E746_T751>I	2235–2252>AAT del 18	1 (0.64)
		L747_A750>P	2238–2248>GC del 11	5 (3.27)
		L747_A750>P	2239–2248>C del 10	1 (0.64)
		L747_T751del	2239–2253 del 15	2 (1.31)
		L747_T751del	2240–2254 del 15	1 (0.64)
		L747_S752del	2239–2256 del 18	1 (0.64)
		L747_T751>P	2239–2251>C del 13	1 (0.64)
		E746_S752>V	2237–2255>T del 19	2 (1.31)
		S768I	2303G>T	1 (0.64)
	20	V769_D770insASV	2307–2308 ins GACAACGTG	1 (0.64)
		T790M	2369C>T	2 (1.31)
	21	L858R	2573T>G	67 (43.8)