Table 1.

Characteristics of Patients With Advanced Lung Cancer

Category	N	%
Sex
Female	512	44.3
Male	645	55.8
Age, y
<65	353	30.5
65–80	674	58.3
>80	130	11.2
Performance status
0	276	23.9
1	597	51.6
2	284	24.6
Stage
IIIB	200	17.3
IV	957	82.7
NSCLC subtype
Adenocarcinoma	758	65.5
Squamous cell carcinoma	268	23.2
Adenosquamous carcinoma	11	1.0
Large cell neuroendocrine carcinoma	26	2.3
Other	8	0.7
Not otherwise specified	44	3.8
Unknown	42	3.6