Skip to main content

Table 2 Association of smoking status with demographical and clinical features of patients with adenocarcinoma

From: Chinese never smokers with adenocarcinoma of the lung are younger and have fewer lymph node metastases than smokers

 

Ever Smoker (n = 143)

Never smoker (n = 698 )

P values

P adj

Age at diagnosis

59.3 ± 9.4

54.2 ± 12.7

0.0000015

< 0.001

Sex

male

135 (94.41%)

216 (30.95%)

1.18e-44

< 0.001

female

8 (5.59%)

482 (69.05%)

T

Tis

3 (2.24%)

63 (9.20%)

  

T1a

T1*

26 (19.40%)

100 (74.63%)

230 (33.58%)

517 (75.47%)

0.067

Ns

T1b

56 (41.79%)

208 (30.36%)

T1c

18 (13.43%)

79 (11.53%)

T2a

T2-T4

20 (14.93%)

31 (23.13%)

66 (9.64%)

105 (15.33%)

T2b

5 (3.73%)

9 (1.31%)

T3

5 (3.73%)

27 (3.94%)

T4

1 (0.75%)

3 (0.44%)

N

N0*

115 (80.42%)

645 (92.41%)

0.000014

< 0.001

N1-N3

28 (19.48%)

53 (7.59%)

M

M0*

141 (98.60%)

689 (98.71%)

1

Ns

M1

2 (1.40%)

9 (1.29%)

TNM

0

3 (2.21%)

62 (8.96%)

  

IA1

Less severe *

25 (18.38%)

113 (83.09%)

228 (32.95%)

592 (85.55%)

0.00037

< 0.001

IA2

45 (33.09%)

196 (28.32%)

IA3

16 (11.76%)

74 (10.69%)

IB

15 (11.03%)

58 (8.38%)

IIA

3 (2.21%)

6 (0.87%)

IIB

9 (6.62%)

30 (4.34%)

IIIA

Severe

17 (12.50%)

20 (14.71%)

28 (4.05%)

38 (5.49%)

IIIB

1 (0.74%)

3 (0.43%)

IV

2 (1.47%)

7 (1.01%)

  1. *reference group for the comparison of T, N, M and TNM. 22 patients (9 smokers and 13 never smokers) with T1 or T2 stage had no information of substages. 5 patients with IA stage had no information of substages