Table 2 Histopathological features in gastric cancers with different HER2 status

N

9

36

Gender (M/F)

6/3

23/13

0.876

Age (mean ± SD)

60.3 ± 10.7

61.6 ± 11.2

0.755

Diameter (mean ± SD)

5.11 ± 2.89

5.11 ± 2.21

1.000

Diameter (<3 cm/>3 cm)

2/7

10/27

0.768

Diameter (<4 cm/>4 cm)

5/4

14/22

0.365

T stage (1/2/3/4)

0/2/6/1

6/5/20/5

0.569

N stage (0/1-3)

2/7

9/27

0.862

M stage (0/1)

8/1

35/1

0.278

TNM stage (I/II/III/IV)

1/2/5/1

6/11/18/1

0.686

Lauren classification (intestinal/ mixed/diffuse type)

6/1/2

5/3/28

0.003^*

Pathologic type(adenocarcinoma /signet ring cell cancer)

7/2

30/6

0.697

Differentiation degree of adenocarcinomas (poor/poor-mod/mod/mod-well)^§

4/2/1/0

12/9/7/2

0.784

Overall differentiation degree (poor/poor-mod/mod/mod-well)^‡

6/2/1/0

18/9/7/2

0.758

Location (cardia&fundus/cardia&body/ body/body&antrum/antrum)

2/2/0/2/3

13/2/3/2/16

0.209