Table 1.

Patient characteristics

Category	Subcategory	Level 0, N	Level -1, N
Total		9	12
Median age (range), yr		78 (74–79)	75 (70–84)
Sex	Female	5	7
	Male	4	5
Histological type	Adenocarcinoma	8	11
	NSCLC, NOS	1	1
Disease stage	IIIB	1	1
	IV	8	10
	Recurrent	0	1
Performance status	0	3	5
	1	6	7
EGFR mutation	Ex19 del	0	2
	L858R	2	0
	Wild type	5	7
	Unknown	2	3

EGFR: Epidermal growth factor receptor, Ex19del: Exon 19 deletions, NOS: Not otherwise specified, NSCLC: Non-small-cell lung cancer