Table 2 Univariate analysis of the overall survival in these group gastric cancer patients with peritoneal dissemination

 Palliative gastrectomy

<0.001

  With

330

19

7.33

  Without

188

31

16.13

 Tumor size

<0.001

  <5 cm

188

31

17.30

  5 and <10 cm

243

26

11.00

  >10 cm

87

18

9.30

 Tumor location

0.011

  Upper

118

23

12.00

  Middle

105

30

15.60

  Lower

191

39

13.33

  Total

104

20

8.97

 Peritoneal seeding grade

<0.001

  P1

136

34

18.67

  P2

149

31

15.48

  P3

233

19

8.97

 Ascite

0.001

  With

207

20

9.87

  Without

311

31

14.27

 Serum CEA level (ng/ml)

0.002

  Normal

349

29

14.03

  Elevated

142

20

9.33

 Serum CA19-9 level (U/ml)

0.033

  Normal

314

29

13.53

  Elevated

169

22

11.27

 Palliative chemotherapy

<0.001

  Yes

337

35

17.40

  No

181

9

6.90

 BMI group (kg/m²)

<0.001

  <18.5

167

15

8.17

  18.5–23

232

35

18.67

  >23

119

25

11.87