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Table 1 Patient characteristics and pathological results before and after PSM

From: Medium-term oncological outcomes of totally laparoscopic colectomy with intracorporeal anastomosis for right-sided and left-sided colon cancer: propensity score matching analysis

  

Before PSM

After PSM

 

EA (n = 294)

IA (n = 94)

P value

 

EA (n = 83)

IA (n = 83)

P value

Sex (M/F)

135/159

54/40

0.051

 

39/44

48/35

0.16

Age (years)

73 (29–90)

70 (29–87)

0.036*

 

70 (34–88)

71 (29–87)

0.92

BMI (kg/m2)

22 (13–33)

23 (15–41)

 < 0.01*

 

23 (17–33)

23 (15–41)

0.48

ASA classification (I/II/III)

70/187/37

52/39/3

 < 0.01*

 

42/39/2

41/39/3

0.90

History of diabetes

37 (13%)

10 (11%)

0.61

 

10 (12%)

10 (12%)

1.00

Tumor location

  

 < 0.01*

   

0.74

 Right-side colon

234 (80%)

52 (55%)

  

53 (64%)

51 (61%)

 

 Left-side colon

60 (20%)

42 (45%)

  

30 (36%)

32 (39%)

 

Tumor size

  

0.41

   

0.32

 > 5 cm

93 (32%)

34 (36%)

  

24 (29%)

30 (36%)

 

 ≤ 5 cm

201 (68%)

60 (64%)

  

59 (71%)

53 (64%)

 

T stage

  

0.081

   

0.07

 T1–2

120 (41%)

29 (31%)

  

35 (42%)

24 (29%)

 

 T3–4

174 (59%)

65 (69%)

  

48 (58%)

59 (71%)

 

LN metastasis

  

0.21

   

0.29

 Yes

71 (24%)

29 (31%)

  

19 (23%)

25 (30%)

 

 No

223 (76%)

65 (69%)

  

64 (77%)

58 (70%)

 

TNM staging

  

0.067

   

0.23

 I

111 (38%)

26 (28%)

  

32 (39%)

22 (27%)

 

 II

112 (38%)

39 (42%)

  

32 (39%)

36 (43%)

 

 III

71 (24%)

29 (30%)

  

19 (23%)

25 (30%)

 
  1. PSM propensity score matching, EA extracorporeal anastomosis, IA intracorporeal anastomosis, M male, F female, BMI body mass index, ASA American Society of Anesthesiologists, LN lymph-node
  2. TNM stage is classified by UICC-7 staging. Values are expressed as median (range)
  3. *Significant difference between groups; P < 0.05