Table 2 Malignancies accompanying lung cancer

Digestive system

80(45.7 %)

37(57.8 %)

43(38.7 %)

0.018

32(65.3 %)

48(38.1 %)

0.001

 Colon

25

9

16

5

20

 Rectum

18

5

13

7

11

 Esophagus

17

8

9

5

12

 Liver

9

6

3

6

3

 Stomach

9

9

0

9

0

 Duodenal

1

0

1

0

1

 Gallbladder

1

0

1

0

1

Urogenital system

33(18.9 %)

7(10.9 %)

26(23.4 %)

0.046

3(6.1 %)

30(23.8 %)

0.009

 Urinary bladder

10

2

8

1

9

 Prostate

5

0

5

1

4

 Uterine cervix

7

1

6

0

7

 Kidney

4

1

3

1

3

 Ovary

4

2

2

0

4

 Endometrium

3

1

2

0

3

Head&Neck

34(19.4 %)

12(18.7 %)

22(19.8 %)

1.00

9(18.4 %)

25(19.8 %)

0.84

 Thyroid gland

13

6

7

6

7

 Larynx

8

2

6

2

6

 Nasopharynx

9

2

7

0

9

 Parotid gland

1

1

0

0

1

 Tongue

2

0

2

0

2

 Soft palate

1

1

0

1

0

Lymphatic&hemat-opoietic system

11(6.3 %)

4(6.3 %)

7(6.3 %)

1.00

2(4.1 %)

9(7.2 %)

0.73

 Lymphoma

8

3

5

1

7

 Leukemia

3

1

2

1

2

Others

17(9.7 %)

4(6.3 %)

13(11.7 %)

0.30

3(6.1 %)

14(11.1 %)

0.41

 Breast

10

3

7

1

9

 Skin

5

1

4

1

4

 Nasal olfactory cell

1

0

1

0

1

Osteosarcoma

1

0

1

1

0