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Table 1 Baseline characteristics

From: Prognostic significance of sealed-off perforation in colon cancer: a prospective cohort study

 

Free perforation

(n = 24)

Sealed-off perforation

(n = 62)

p value

Age (years old)

76.1 ± 12.5

59.4 ± 15.5

0.000

Sex

  

0.874

 Male

14 (58.3%)

35 (56.5%)

 

 Female

10 (41.7%)

27 (43.5%)

 

BMI (kg/m2)

22.7 ± 3.5

22.0 ± 2.8

0.458

ASA class

  

0.001

 1

4 (19.0%)

26 (44.8%)

 

 2

8 (38.1%)

26 (44.8%)

 

 3

8 (38.1%)

6 (10.3%)

 

 4

1 (4.8%)

0 (0%)

 

Surgery

  

0.000

 Elective

2 (8.3%)

48 (77.4%)

 

 Emergency

22 (91.7%)

14 (22.6%)

 

Operation intent

  

0.752

 Curative

19 (79.2%)

52 (83.9%)

 

 Palliative

5 (20.8%)

10 (16.1%)

 

Tumor differentiation

  

0.858

 Adenocarcinoma, well differentiated

1 (4.2%)

3 (4.8%)

 

 Adenocarcinoma, moderate differentiated

19 (79.2%)

48 (77.4%)

 

 Adenocarcinoma, poorly differentiated

3 (12.5%)

8 (12.9%)

 

 Mucinous carcinoma

1 (4.2%)

2 (3.2%)

 

 Signet ring cell carcinoma

0 (0.0%)

1 (1.6%)

 

Size (cm)

5.8 ± 2.3

6.6 ± 2.3

0.100

pT

  

0.687

 3

12 (50.0%)

28 (45.2%)

 

 4

12 (50.0%)

34 (54.8%)

 

pN

  

0.779

 0

10 (41.7%)

27 (43.5%)

 

 1

11 (45.8%)

23 (37.1%)

 

 2

3 (12.5%)

12 (19.4%)

 

The number of metastatic LN

1.5 ± 2.9

2.2 ± 3.8

0.325

The number of harvest LN

18.9 ± 9.5

23.3 ± 11.4

0.091

M

  

0.588

 0

16 (66.7%)

45 (72.6%)

 

 1

8 (33.3%)

17 (27.4%)

 

Proximal margin (cm)

27.5 ± 30.2

19.5 ± 20.4

0.088

Distal margin (cm)

13.9 ± 14.5

10.7 ± 9.5

0.395

Lymphatic invasion

  

0.848

 Absent

13 (54.2%)

35 (56.5%)

 

 Present

11 (45.8%)

27 (43.5%)

 

Venous invasion

  

0.161

 Absent

15 (62.5%)

45 (77.6%)

 

 Present

9 (37.5%)

13 (22.4%)

 

Perineural invasion

  

0.541

 Absent

17 (70.8%)

37 (63.8%)

 

 Present

7 (29.2%)

21 (36.2%)

 

Postoperative complication

   

(Clavien-Dindo classification)

  

0.000

 No complication

9 (37.5%)

50 (42.5%)

 

 Grade I

2 (8.3%)

0 (0%)

 

 Grade II

4 (16.7%)

8 (12.9%)

 

 Grade III

5 (20.8%)

3 (4.8%)

 

 Grade IV

4 (16.7%)

1 (1.6%)

 

Postoperative chemotherapy

7 (29.2%)

46 (74.2%)

0.000

  1. BMI body mass index, ASA class American Society of Anesthesiologists classification, LN lymph nodes