临床特征

青年组(n = 120)

老年组(n = 118)

χ²

P

性别

男

75 (62.5%)

89 (75.4%)

4.638

0.031

女

45 (37.5%)

29 (24.6%)

吸烟史

有

34 (28.3%)

65 (55.1%)

17.526

<0.001

无

86 (71.7%)

53 (44.9%)

肺癌家族史

有

22 (18.3%)

12 (10.2%)

3.238

0.072

无

98 (81.7%)

106 (89.8%)

组织学类型

腺癌

67 (55.9%)

45 (38.2%)

7.480

0.006

鳞癌

25 (20.8%)

40 (33.9%)

5.116

0.024

小细胞癌

22 (18.3%)

20 (16.9%)

0.078

0.779

其他

6 (5.0%)

13 (11.0%)

2.932

0.087

TNM分期

I-II

38 (31.7%)

56 (47.5%)

6.208

0.013

III-IV

82 (68.3%)

62 (52.5%)