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Table 2 Associations between molecular subtypes and clinicopathologic variables in the development cohort

From: Simplified molecular classification of lung adenocarcinomas based on EGFR, KRAS, and TP53 mutations

Variable

N

Overall

sTRU (n = 34)

sPP (n = 43)

sPI

(n = 46)

EGFR/TP53 (n = 26)

KRAS/TP53 (n = 34)

Non-TRUPPPI (n = 21)

No mutation

(n = 29)

P

Age, mean (standard deviation), y

233

64.8 (10.9)

67.3 (10.6)

67.2 (9.0)

65.3 (9.3)

56.9 (12.6)

64.3 (7.9)

67.5 (12.5)

62.9 (13.6)

0.005

Sex, n (%)

233

        

0.075

 Female

 

127 (54.5)

20 (58.8)

27 (62.8)

17 (37.0)

17 (65.4)

20 (58.8)

8 (38.1)

18 (62.1)

 

 Male

 

106 (45.5)

14 (41.2)

16 (37.2)

29 (63.0)

9 (34.6)

14 (41.2)

13 (61.9)

11 (37.9)

 

FISH, n (%)

226

        

0.544

 Negative

 

206 (91.2)

27 (81.8)

37 (88.1)

43 (93.5)

23 (92.0)

30 (93.8)

20 (95.2)

26 (96.3)

 

 Positive

 

20 (8.8)

6 (18.2)

5 (11.9)

3 (6.5)

2 (8.0)

2 (6.2)

1 (4.8)

1 (3.7)

 

Race/ethnicity, n (%)

232

        

0.041a

 Asian

 

23 (9.9)

8 (23.5)

0 (0.0)

5 (10.9)

5 (19.2)

1 (3.0)

2 (9.5)

2 (6.9)

 

 Black

 

16 (6.9)

3 (8.8)

2 (4.7)

5 (10.9)

1 (3.8)

2 (6.1)

2 (9.5)

1 (3.4)

 

 White

 

175 (75.4)

20 (58.8)

37 (86.0)

33 (71.7)

15 (57.7)

29 (87.9)

16 (76.2)

25 (86.2)

 

 Hispanic

 

18 (7.8)

3 (8.8)

4 (9.3)

3 (6.5)

5 (19.2)

1 (3.0)

1 (4.8)

1 (3.4)

 

Smoking, n (%)

232

        

< 0.001a

 Current

 

62 (26.7)

5 (14.7)

12 (27.9)

14 (31.1)

3 (11.5)

19 (55.9)

5 (23.8)

4 (13.8)

 

 Former

 

115 (49.6)

11 (32.4)

26 (60.5)

25 (55.6)

11 (42.3)

15 (44.1)

14 (66.7)

13 (44.8)

 

 Never

 

55 (23.7)

18 (52.9)

5 (11.6)

6 (13.3)

12 (46.2)

0 (0.0)

2 (9.5)

12 (41.4)

 

Aneuploidy, n (%)

206

        

0.025

 No

 

46 (22.3)

11 (35.5)

9 (23.1)

9 (20.9)

10 (40.0)

3 (12.0)

3 (15.8)

1 (4.2)

 

 Yes

 

160 (77.7)

20 (64.5)

30 (76.9)

34 (79.1)

15 (60.0)

22 (88.0)

16 (84.2)

23 (95.8)

 
  1. sTRU Simplified terminal respiratory unit, sPP Simplified proximal-proliferative, sPI Simplified proximal-inflammatory, non-TRUPPPI Mutated in genes other than EGFR, KRAS, and TP53, FISH Fluorescence in situ hybridization
  2. P values are based on Fisher exact test for categorical variables and Kruskal-Wallis rank-sum test for continuous variables
  3. aFisher exact test with Monte Carlo simulation