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Table 1 Selected demographic and medical parameters and their association with 5-year overall survival (OS) and modes of surgery

From: Endoscopic obstruction is associated with higher risk of acute events requiring emergency operation in colorectal cancer patients

  

Survival probability

Emergency surgery

Parameter

No. (cases) (%)

5-year OS (%)

Log-rank p-value

(cases) (%)

p-value

All

329

64.1

-

22 (7)

-

Sex

  

0.5

 

0.73

male

191 (58)

62.4

 

12 (6)

 

female

138 (42)

66.5

 

10 (7)

 

Age

  

0.51

 

0.35

< 60 years

136 (41)

66.7

 

7 (5)

 

≥ 60 years

193 (59)

62.3

 

15 (8)

 

Co-morbidity

  

0.71

 

0.97

Absent

193 (59)

65.5

 

13 (7)

 

Present

136 (41)

61.7

 

9 (7)

 

Serum CEA

  

< 0.01

 

0.32

< 5 ng/ml

144 (59)

71.1

 

8 (6)

 

≥ 5 ng/ml

102 (41)

54.8

 

9 (9)

 

Tumor site

  

0.32

 

0.79

Rectum

94 (29)

56.8

 

5 (5)

 

Colon

223 (68)

66.8

 

16 (7)

 

T

  

0.02

 

0.18

T0-2

47 (14)

75.9

 

1 (2)

 

T3-4

282 (86)

62

 

22 (8)

 

N

  

< 0.01

 

0.34

N0

171 (53)

78.7

 

9 (5)

 

N1-2

152 (47)

49.4

 

12 (8)

 

M

  

< 0.01

 

0.02

M0

281 (85)

72.1

 

15 (5)

 

M1

48 (15)

18.5

 

7 (15)

 

Tumor differentiation

  

0.16

 

0.77

Well/Moderate

279 (92)

64.9

 

18 (7)

 

Poor

25 (8)

58.6

 

2 (8)

 

Lymphovascular invasion

  

< 0.01

 

0.12

Absent

276 (84)

69

 

16 (6)

 

Present

51 (16)

35.3

 

6 (12)

 

Lymph node ratio

  

< 0.01

 

0.53

< 0.35

273 (86)

72.7

 

17 (6)

 

≥ 0.35

46 (14)

23.6

 

4 (9)

 

Endoscopic obstruction

  

0.73

 

< 0.01

Absent

120 (37)

67.2

 

2(2)

 

Present

209 (64)

62.3

 

20 (10)

 

Mode of operation

  

< 0.01

 

-

Elective

307 (93)

66.4

 

-

 

Emergency

22 (7)

32.3

 

-

 
  1. CEA carcinoembryonic antigen.