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

Table 3 Comparison of patient’s demographics between survivors (n = 65) of more than 3 yr and those (n = 409) of less than 3 yr

Variables		< 3 yr (n=409)	≥3 yr (n=65)	P value
Age	< 65/≥65	231/178	21/34	0.2267
Gender	Male/Female	290/119	33/32	0.0024
PS	0-1/2-4	329/80	60/5	0.0225
Smoking	Yes/No	291/118	35/30	0.0090
Histology	AC/Non-AC	268/141	65/0	< 0.0001
Clinical stage	IIIB/IV	91/318	18/47	0.3428

PS: Performance status; AC: Adenocarcinoma.