Factor

patient

chi-square

95% CI

P value

ALL

338

Gender

0.279

0.598

Male

267

38.08 - 42.96

Female

71

36.45 - 45.84

-

Residence

1.284

0.257

Urban

137

38.84 - 45.53

Country

201

36.75 - 42.47

Age (years)

4.20

0.24

36 - 45

24

39.78 - 53.93

46 - 55

101

35.83 - 43.84

56 - 65

165

38.19 - 44.09

66~

48

30.36 - 41.39

Regional Lymph Nodes

23.04

<0.05

N0

181

42.89 - 48.38

N1

104

32.42 - 40.41

N2

39

27.42 - 38.96

N3

14

20.94 - 38.17

Anatomic Stage

23.79

<0.05

I

10

29.33 - 40.67

II A

144

43.59 - 49.62

IIB-III

164

34.14 - 40.43

IV

20

21.79 - 37.25

Numberof lymph node dissection

6.07

0.048

0 - 6

211

39.77 - 45.19

7 - 11

78

35.83 - 44.40

12~

49

28.54 - 39.35

Distant Metastasis

8.70

0.003

M0

318

39.32 - 43.77

M1

20

21.79 - 37.25