Analysis of total cohort (n = 210)

Univariable analysis

Multivariable analysis

Variable

OR*

95% CI*

P - value

OR

95% CI

P-value

Age

0.97

0.95 - 0.99

0.005

0.97

0.94 - 1.00

0.02

Gender

Male

Female

ref

1.30

-

0.71 - 2.42

0.39

ref

1.62

-

0.86 - 3.12

0.14

ASA Score

ASA I-II

ASA III-V

ref

0.48

-

0.24 - 0.91

0.03

ref

0.69

-

0.30 - 1.54

0.38

Type of acute left sided colonic emergency

Malignant obstruction

Perforated diverticulitis

ref

0.94

-

0.51 - 1.70

0.83

ref

0.70

-

0.37 - 1.33

0.28

Subgroup analysis for malignant obstructions (n = 89)

Age

0.99

0.95 - 1.03

0.77

0.95

0.90 - 1.00

0.07

Gender

Male

Female

ref

0.72

-

0.28 - 1.82

0.48

ref

0.99

-

0.33 - 3.16

0.99

ASA Score

ASA I-II

ASA III-V

ref

6.97

-

2.28 - 23.27

<0.001

ref

11.68

-

3.07 - 54.73

<0.001

Site of cancer

Descending to sigmoid

Rectum

ref

1.55

-

0.59 - 4.33

0.39

ref

1.78

-

0.60 - 5.73

0.31

Subgroup analysis for diverticulitis perforations (n = 121)

Age

0.96

0.93 - 0.98

0.002

0.99

0.94 - 1.03

0.47

Gender

Male

Female

ref

2.05

-

0.91 - 4.82

0.09

ref

3.81

-

1.38 - 11.44

0.01

ASA Score

ASA I-II

ASA III-V

ref

0.08

-

0.03 - 0.22

<0.001

ref

0.11

-

0.03 - 0.37

<0.001

Hinchey Classification

Hinchey I-II

Hinchey III-IV

ref

0.12

-

0.03 - 0.32

<0.001

ref

0.20

-

0.05 - 0.63

0.009