Table 1 No. of examined lymph nodes among 6463 patients

Total

6463

100

28.6

12.7

26

19–35

Clinical T stage (all patients)

 cT1

1609

24.9

25.2

11.7

23

17–31

 cT2

879

13.6

27.3

11.6

25

19–33

 cT3

2337

36.2

30.8

12.9

29

21–38

 cT4

1638

25.3

29.3

13.3

27

20–36

Clinical T stage (pN0 patients)

 cT1

1395

21.7

24.8

11.7

23

16–31

 cT2

487

7.5

26.5

11.3

24

19–32

 cT3

589

9.1

28.8

12.0

27

20–35

 cT4

274

4.2

26.4

12.0

25

18–33

Pathological N stage

 pN0

2745

42.5

26.2

11.8

24

18–32

 pN1

951

14.7

27.3

11.9

25

19–34

 pN2

1109

17.2

28.4

12.1

26

19–35

 pN3

1658

25.7

33.4

13.7

31

24–41

Surgical extent

 Proximal gastrectomy

1298

20.1

23.2

9.87

22

16–29

 Distal gastrectomy

3045

47.1

27.4

11.7

26

19–34

 Entire gastrectomy

2120

32.8

33.4

13.9

31

23–41