Table 2 Univariate analysis with respect to overall survival (n = 135).

P-Smad2 expression

1.650

1.005-2.710

0.048

   Low vs. high

Morphologic feature

5.354

3.199-8.963

< 0.001

   Type 1, 2, and 3 vs. type 4

Differentiation

3.883

2.020-7.463

< 0.001

   Intestinal-type vs. Diffuse-type

Lymph node metastasis (Japanese classification)

3.269

1.978-5.403

< 0.001

   N0 and N1 vs. N2 and N3

Peritoneal dissemination

5.534

3.056-8.738

< 0.001

   Negative vs. positive

Peritoneal cytology

5.937

3.468-10.166

< 0.001

   Negative vs. positive

Lymphatic invasion

2.055

1.234-3.421

0.006

   Ly0 and ly1 vs. ly2 and ly3

Clinical Stage

6.901

4.088-11.651

< 0.001

   I, II, and III vs. IV