Table 1 Baseline characteristics of LUAD patients in TCGA

Age, years

0.678

 > 65, n (%)

262 (50.2%)

163 (48.8%)

99 (52.7%)

 ≤ 65, n (%)

241 (46.2%)

159 (47.6%)

82 (43.6%)

 Unknown, n (%)

19 (3.64%)

12 (3.59%)

7 (3.72%)

Gender

0.668

 Female, n (%)

280 (53.6%)

182 (54.5%)

98 (52.1%)

 Male, n (%)

242 (46.4%)

152 (45.5%)

90 (47.9%)

Stage

< 0.001

 Stages I–II, n (%)

403 (77.2%)

280 (83.8%)

123 (65.4%)

 Stages III–IV, n (%)

111 (21.3%)

48 (14.4%)

63 (33.5%)

 Unknown, n (%)

8 (1.53%)

6 (1.80%)

2 (1.06%)

T

0.005

 T1–2, n (%)

453 (86.8%)

301 (90.1%)

152 (80.9%)

 T3–4, n (%)

66 (12.6%)

32 (9.58%)

34 (18.1%)

 Unknown, n (%)

3 (0.57%)

1 (0.30%)

2 (1.06%)

N

< 0.001

 N0, n (%)

335 (64.2%)

245 (73.4%)

90 (47.9%)

 N1-3, n (%)

175 (33.5%)

81 (24.3%)

94 (50.0%)

 Unknown, n (%)

12 (2.30%)

8 (2.40%)

4 (2.13%)

M

0.003

 M0, n (%)

353 (67.6%)

219 (65.6%)

134 (71.3%)

 M1, n (%)

25 (4.79%)

10 (2.99%)

15 (7.98%)

 Unknown, n (%)

144 (27.6%)

105 (31.4%)

39 (20.7%)