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Table 1 Clinicopathological characteristics of patients undergoing gastrectomy with D1/D1+ or D2 lymphadenectomy

From: A comparison of the operative outcomes of D1 and D2 gastrectomy performed at a single Western center with multiple surgeons: a retrospective analysis with propensity score matching

Variable

 

Before PSM (n = 204)

aAfter PSM (n = 78)

  

D1/D1+ (n = 54)

D2 (n = 150)

 

D1/D1+ (n = 39)

D2 (n = 39)

 
  

54

150

 

39

39

 
  

n

%

n

%

p b

n

%

n

%

p b

Aged

Mean (sd)

c67.1

c(11.7)

c65.5

c(12.75)

0.420

c67.4

c(11.5)

64.9

c(13.5)

0.387

Gender

     

0.604

    

1.000

 

Male

35

(65%)

103

(69%)

 

27

(69%)

27

(69%)

 
 

Female

19

(35%)

47

(31%)

 

12

(31%)

12

(31%)

 

BMIe

Mean (sd)

c26.7

c(5.46)

c24.8

c(5.58)

0.049*

c26.0

c(5.29)

c24.4

c(6.35)

0.219

Hemoglobin level

     

0.932

    

0.530

 

≤ 100 g/L

7

(13%)

20

(13%)

 

5

(13%)

7

(18%)

 
 

> 100 g/L

47

(87%)

129

(86%)

 

34

(87%)

32

(82%)

 

Tumor location

     

0.168

    

0.193

 

Proximal

5

(9%)

30

(20%)

 

4

(10%)

6

(15%)

 
 

Middle

15

(28%)

31

(21%)

 

11

(28%)

17

(44%)

 
 

Distal

28

(52%)

79

(53%)

 

24

(62%)

16

(41%)

 

TMN stage

     

0.119

    

0.280

 

In situ

0

(0%)

4

(3%)

 

0

(0%)

4

(10%)

 
 

I

19

(35%)

44

(29%)

 

14

(36%)

16

(41%)

 
 

II

19

(35%)

49

(33%)

 

14

(36%)

11

(28%)

 
 

III

12

(22%)

48

(32%)

 

9

(23%)

7

(18%)

 
 

IV

4

(7%)

3

(2%)

 

2

(5%)

1

(3%)

 
 

Unknown

0

(0%)

2

(1%)

 

0

(0%)

0

(0%)

 

T level

     

0.123

    

0.411

 

T0

0

(0%)

4

(3%)

 

0

(0%)

2

(5%)

 
 

T1

15

(28%)

39

(26%)

 

11

(28%)

12

(31%)

 
 

T2

8

(15%)

18

(12%)

 

7

(18%)

7

(18%)

 
 

T3

22

(41%)

39

(26%)

 

15

(38%)

10

(26%)

 
 

T4

9

(17%)

48

(32%)

 

6

(15%)

6

(15%)

 
 

Unknown

0

(0%)

2

(1%)

 

0

(0%)

2

(5%)

 

N category

     

0.831

    

0.523

 

N0

26

(48%)

65

(43%)

 

18

(46%)

20

(51%)

 
 

N1

12

(22%)

35

(23%)

 

9

(23%)

12

(31%)

 
 

N2

7

(13%)

27

(18%)

 

5

(13%)

4

(10%)

 
 

N3

9

(17%)

23

(15%)

 

7

(18%)

3

(8%)

 

Differentiation

     

0.389

    

0.422

 

Well

1

(2%)

8

(5%)

 

1

(3%)

2

(5%)

 
 

Moderate

16

(30%)

52

(35%)

 

9

(23%)

14

(36%)

 
 

Poor

30

(56%)

65

(43%)

 

22

(56%)

15

(38%)

 
 

Unknown

7

(13%)

25

(17%)

 

7

(18%)

8

(21%)

 

Chemotherapy

     

0.228

    

1.000

 

Yes

30

(56%)

69

(46%)

 

22

(56%)

22

(56%)

 
 

No

24

(44%)

81

(54%)

 

17

(44%)

17

(44%)

 

Gastrectomy type

     

0.011*

    

0.065

 

Total

10

(19%)

56

(37%)

 

6

(15%)

13

(33%)

 
 

Partial

44

(81%)

94

(63%)

 

33

(85%)

26

(67%)

 

Lymph node yielde

Mean (sd)

c15.7

c(10.1)

21.7

c(12.0)

0.001*

15.0

c(10.4)

20.3

c(11.5)

0.050*

Splenectomy +/− pancreatectomy

     

0.581

    

1.000

 

No

53

(98%)

145

(97%)

 

38

(97%)

38

(97%)

 
 

Yes

1

(2%)

5

(3%)

 

1

(3%)

1

(3%)

 
  1. *p < 0.05
  2. aMatched parameters—BMI, T-level, tumor location, chemotherapy
  3. bChi-square test
  4. cMean (sd)
  5. dMann-Whitney U test
  6. et test
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World Journal of Surgical Oncology

ISSN: 1477-7819

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