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Table 1 Association between different demographic, pathological and laboratory markers with presence of peritoneal metastases

From: Predictors of peritoneal metastasis of gastric origin

Prognostic factor

Peritoneal metastasis

P value

No

Yes

N

%

N

%

Age (year)

56.2 ± 12.6

51.4 ± 12.5

0.02

Gender

 Male

85

59.0

27

45.8

 

 Female

59

41.0

32

54.2

0.084

Site of the tumora

 Distal

52

36.1

9

15.3

 

 Middle

45

31.3

33

55.9

 

 Proximal

47

32.6

17

28.8

0.002

Morphology

 Polypoidal mass

110

76.4

38

64.4

 

 Thickening

7

4.9

14

23.7

 

 Ulcer

27

18.8

7

11.9

< 0.001

T stageb

 T2

8

11.9

1

5.0

 

 T3

25

37.3

6

30.0

 

 T4

31

46.3

13

65.0

0.523

N stage b

 N0

24

35.8

2

10.0

 

 N1

14

20.9

6

30.0

 

 N2

18

26.9

5

25.0

 

 N3

11

16.4

7

35.0

0.074

Histological type

 Adenocarcinoma NOS

98

68.1

29

49.2

 

 Mucinous adenocarcinoma

5

3.5

3

5.1

 

 Signet ring adenocarcinoma

38

26.4

23

39.0

 

 Undifferentiated carcinoma

3

2.1

4

6.8

0.040

Grade

 Grade I

4

2.8

1

1.7

 

 Grade II

95

66.0

20

33.9

 

 Grade III

45

31.3

38

64.4

< 0.001

Neutrophils

 <= 4.17

56

41.2

20

34.5

 

 > 4.17

80

58.8

38

65.5

0.382

Lymphocytes

 <= 1.9

64

47.1

37

63.8

 

 > 1.9

72

52.9

21

36.2

0.033

NLR

 <= 2.6

72

53.7

26

47.3

 

 > 2.6

62

46.3

29

52.7

0.420

Albumin

 <= 3.5

68

59.6

27

56.3

 

 > 3.5

46

40.4

21

43.8

0.688

CEA

 <= 5

54

69.2

23

57.5

 

 > 5

24

30.8

17

42.5

0.205

CA19-9

 <= 37

53

71.6

20

51.3

 

 > 37

21

28.4

19

48.7

0.032

  1. aThe upper part of stomach includes the gastro-esophageal junction and cardia; the middle part includes the body of stomach, while the distal part includes the pyloric antrum and pyloric canal
  2. bNot all cases had undergone endoscopic ultrasounds and T and N staging were thus missing from a number of patient medical records