Table 1 Correlations between circLIFRSA expression and clinical characteristics

Age

0.1083

 ≤55

11

8

3

 >55

63

28

35

Gender

0.1067

 Male

44

18

26

 Female

30

18

12

Lesion location

0.3074

 Right

49

24

25

 Left

23

10

13

 Bilateral

2

2

0

BMI

0.0833

 <22

36

16

20

 ≥22

38

20

18

Smoking history

0.7899

 Yes

32

15

17

 No

42

21

21

Tumor size(cm)

0.0381*

 <2

46

27

19

 ≥2

28

9

19

Numbers of tumor

0.0438*

 Solitary

64

28

36

 Multiple

10

8

2

Metastasis

0.7115

 Yes

8

3

5

 No

66

33

33

TNM stage

0.0564

 I/II

66

35

31

 III/IV

8

1

7

Differentiation grade

0.005**

 High

39

25

14

 Low

35

11

24

Pathological type

0.0144*

 Squamous carcinoma

25

7

18

 Adenocarcinoma

45

28

17

 Other type

4

1

3

Serum CYFRA21-1

0.12

 ≤3.3

49

27

22

 >3.3

25

9

16

CA199

0.3511

 >35

70

33

37

 ≥35

4

3

1

CA125

0.3575

 >35

68

35

33

 ≥35

6

1

4