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Table 1 Main characteristics of the studies included in this meta-analysis

From: The clinical significance of snail protein expression in gastric cancer: a meta-analysis

First author

Year

Positive rate

 

Cancer tissue

Adjacent tissue

Normal tissue

Low differentiation

Highly + moderate

TI + TII

TIII + TIV

Superficial

Deep

No metastasis

Metastasis

Quality

Yingfeng Zhu

2007

80/96

33/80

–

56/62

24/34

21/29

59/67

10/16

70/80

23/32

57/64

D

Zhifeng Tang

2010

159/189

26/54

6/32

82/100

61/89

29/46

114/143

–

–

49/73

94/116

D

Yaqin Hao

2011

41/54

22/54

9/30

20/22

21/32

–

–

4/9

17/19

5/11

16/17

D

Shengxi Wang

2011

92/112

28/79

–

66/75

26/37

–

–

15/23

77/89

29/42

63/70

E

Li Jin

2011

78/87

–

7/24

–

–

–

–

–

–

–

–

E

Lina Wang

2011

32/60

16/60

3/20

26/42

6/18

–

–

2/9

30/51

4/7

28/53

D

Wude Zhang

2012

41/48

15/48

–

32/34

9/14

23/27

18/21

22/29

19/19

24/30

7/18

E

Xiaoli Cao

2013

32/45

5/20

–

24/27

8/18

11/20

21/25

9/19

23/26

10/20

22/25

E

Qianjun Li

2013

38/65

–

0/65

–

–

–

–

–

–

–

–

D

Limin Liu

2014

57/80

24/80

–

–

–

6/14

51/66

6/15

51/65

11/24

46/56

C