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Table 2 Factors predicting prolonged LOS in colorectal cancer patients having resection 2002-2008

From: Factors predicting hospital length-of-stay and readmission after colorectal resection: a population-based study of elective and emergency admissions

 

Elective Patients LOS > 24 days (n = 5133)

Emergency Patients LOS > 24 days (n = 3063)

 

Crude

Adjusted

Crude

Adjusted

 

OR1

95% CI

OR2

95% CI

LRT

OR1

95% CI

OR2

95% CI3

LRT4

Age at diagnosis

          

< 60

1.0

 

1.0

-

 

1.0

-

1.0

  

60-69

1.60

1.26-2.04

1.55

1.19-2.01

p = 0.001

1.89

1.48-2.43

1.56

1.18-2.05

p < 0.001

70-79

2.31

1.84-2.91

1.87

1.45-2.43

p = 0.001

3.47

2.76-4.37

2.46

1.90-3.18

p < 0.001

80+

4.95

3.85-6.36

3.47

2.57-4.66

p = 0.001

4.63

3.63-5.90

2.83

2.13-3.76

p < 0.001

Gender

          

Male

1.0

-

-

-

-

1.0

-

-

-

 

Female

0.85

0.73-0.99

-

-

-

1.03

0.89-1.19

-

-

 

Marital status

          

Married

1.0

-

1.0

  

1.0

-

1.0

 

p = 0.001

Other

1.65

1.42-1.92

1.20

1.00-1.43

p = 0.047

1.86

1.61-2.15

1.34

1.13-1.59

p = 0.001

Deprivation index 5

          

1 (least deprived)

1.0

-

-

-

 

1.0

-

-

-

 

2

1.06

0.81-1.40

-

-

 

1.13

0.87-1.47

-

-

 

3

0.98

0.74-1.28

-

-

 

1.25

0.95-1.64

-

-

 

4

0.92

0.71-1.19

-

-

 

1.35

1.06-1.72

-

-

 

5 (most deprived)

1.08

0.88-1.34

-

-

 

1.42

1.16-1.75

-

-

 

missing

1.07

0.79-1.45

-

-

 

-

-

   

Smoking status

          

Ever

1.0

-

1.0

  

1.0

-

-

-

 

Never

0.83

0.70-0.98

0.86

0.71-1.04

p = 0.005

0.91

0.73-1.01

-

-

 

Unknown

1.32

1.07-1.62

1.28

1.01-1.63

p = 0.005

0.94

0.74-1.09

-

-

 

Comorbidity 6

          

0

1.0

-

1.0

-

 

1.0

-

1.0

-

 

1

2.15

1.78-2.60

1.70

1.36-2.12

p = 0.001

1.99

1.65-2.41

1.84

1.47-2.31

p < 0.001

2+

2.44

1.86-3.19

1.66

1.21-2.27

p = 0.001

2.84

2.19-3.68

2.46

1.83-3.31

p < 0.001

Site 7

          

Proximal

1.0

-

1.0

  

1.0

-

-

-

 

Distal

0.98

0.79-1.22

1.06

0.82-1.36

p = 0.001

1.01

0.86-1.20

-

-

 

Rectum

1.48

1.23-1.77

1.83

1.48-2.25

p = 0.001

0.99

0.81-1.20

-

-

 

Non specific

1.33

0.86-2.06

1.62

0.98-2.66

p = 0.001

1.09

0.76-1.58

-

-

 

Stage

          

I

1.06

0.82-1.38

-

-

 

1.01

0.73-1.39

-

-

 

II

0.87

0.69-1.07

-

-

 

1.16

0.94-1.43

-

-

 

III

1.0

-

-

-

 

1.0

-

-

-

 

IV

1.06

0.83-1.37

-

-

 

0.87

0.69-1.09

-

-

 

Unknown

1.10

0.90-1.35

-

-

 

1.49

0.95-1.43

-

-

 

Discharge status

          

Public

1.0

-

1.0

  

1.0

-

1.0

  

Private

0.52

0.44-0.62

0.59

0.49-0.71

p = 0.001

0.56

0.47-0.67

0.67

0.56-0.81

p < 0.001

Discharged to

          

Home

1.0

-

1.0

  

1.0

-

1.0

-

 

Care

2.60

2.10-3.21

1.76

1.38-2.26

p = 0.001

2.93

2.39-3.60

1.96

1.55-2.48

p < 0.001

Death

4.89

3.43-6.96

3.00

1.97-4.56

p = 0.001

2.01

1.35-2.63

1.08

0.78-1.48

p < 0.001

Other

4.43

3.19-7.01

3.40

2.19-5.28

p = 0.001

1.93

1.41-2.64

1.73

1.22-2.47

p < 0.001

Same health board 8

          

Yes

1.0

 

-

-

 

1.0

-

   

No

1.09

0.86-1.39

-

-

 

0.61

0.46-0.82

0.66

0.48-0.93

p = 0.016

Hospital volume 9

          

< 20

1.12

0.82-1.53

-

-

 

1.08

0.81-1.43

1.17

0.82-1.67

p = 0.002

20-39

0.99

0.79-1.23

-

-

 

0.88

0.69-1.12

0.95

0.68-1.31

p = 0.002

40-59

1.0

-

-

-

 

1.0

-

1.0

-

 

60-79

0.74

0.59-0.94

-

-

 

0.93

0.74-1.16

0.63

0.46-0.85

p = 0.002

80-100

1.25

0.96-1.61

-

-

 

0.77

0.60-1.00

0.56

0.39-0.80

p = 0.002

> 100

1.20

0.97-1.49

-

-

 

0.80

0.65-0.98

0.74

0.53-1.02

p = 0.002

Surgeon volume 10

          

Low (< 15)

1.0

-

-

-

 

1.0

-

-

-

 

Medium (15-29)

0.76

0.63-0.92

-

-

 

0.91

0.76-1.09

-

-

 

High (> 30)

0.83

0.69-0.99

-

-

 

0.89

0.75-1.05

-

-

 
  1. 1unadjusted odds ratio, 2adjusted for variables shown and hospital health board, 395% confidence intervals, 4p-values from likelihood ratio tests, 5SAHRU 2002 index, 6Charlson weights for surgery episode excluding cancer diagnosis, 7ICD-O 2 topography codes, 8patient resides in same health board region as hospital where surgery occurred, 9median number of colorectal resections performed at the hospital per year, 10median number of colorectal resections performed by the surgeon per year
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BMC Health Services Research

ISSN: 1472-6963

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