Long-term survival of more than 3 years among patients with advanced non-small cell lung cancer treated with chemotherapy

Table 1 Patient’s characteristics (all patients) n (%)

Variables		No. of patients (n = 474)
Age (yr)
(median 64)	< 65	264 (55.7)
(range 23-85)	≥ 65	210 (44.3)
Gender
	Male	323 (68.1)
	Female	151 (31.9)
Performance status
(ECOG)	0	148 (31.2)
	1	240 (50.6)
	2	65 (13.7)
	3	20 (0.04)
	4	1 (0.002)
Smoking
	Yes	320 (67.5)
	No	154 (32.5)
Histology
	Adenocarcinoma	333 (70.3)
	Non-adenocarcinoma	141 (29.7)
Clinical stage
	IIIB	109 (23.0)
	IV	365 (77.0)

ECOG: Eastern Cooperative Oncology Group.