Baseline Patient Characteristics
Characteristic
<70 years
(n = 830)
≥70 years
(n = 544)
ECOG PS 0−1
(n = 1,230)
ECOG PS 2
(n = 123)
Age, years
Median
Range
<70, %
≥70, %
61
29−69
100
0
75
70−93
0
100
67
29−93
62
38
69
45−91
51
49
Male, %
53
54
53
59
Race, %
White
Black
Asian
Other
87
9
3
1
91
6
2
1
89
7
3
1
87
11
2
1
ECOG PS, %
0−1
2
Not reported
91
8
1
87
11
2
100
0
0
0
100
0
Smoking status, %
Never-smoker
Current
Former
Unknown/not reported
13
19
67
<1
12
11
76
<1
14
16
70
<1
7
16
77
0
Disease stage, %
IIIB
IV
Not reported
9
83
8
6
87
7
8
84
8
7
87
7
Tumor histology, %
SQ
Non-SQ
Not reported
25
67
8
29
65
7
26
66
8
23
71
7
Number of prior therapies, %
1
2
≥3
36
29
34
41
27
30
38
28
32
34
33
31
