Table 5

Statistical modelling results, showing the odds ratio for each variable in the model together with 95% confidence intervals (all p-values < 0.001)

Elective Admissions

(n = 153,036)

Emergency Admissions

(n = 3,105,249)


Covariate

Odds Ratio

lower CI

upper CI

Odds Ratio

lower CI

upper CI


Male

1.34

1.28

1.40

1.16

1.13

1.20


Age Category 1: 40-44 years

1.34

1.03

1.74

2.99

2.27

3.94


Age Category 2: 45-49 years

2.22

1.78

2.77

4.98

3.91

6.33


Age Category 3: 50-54 years

2.73

2.22

3.35

6.36

5.05

8.02


Age Category 4: 55-59 years

3.94

3.27

4.75

10.25

8.30

12.65


Age Category 5: 60-64 years

5.13

4.31

6.09

13.54

11.08

16.54


Age Category 6: 65-69 years

6.16

5.19

7.30

17.54

14.41

21.34


Age Category 7: 70-74 years

8.71

7.38

10.29

32.03

26.52

38.68


Age Category 8 75-79 years

12.85

10.91

15.13

40.43

33.58

48.68


Age Category 9: 80-84 years

15.92

13.48

18.80

48.95

40.69

58.88


Age Category 10: 85-89 years

21.91

18.44

26.04

58.35

48.51

70.20


Age Category 11: 90-120 years

28.40

23.10

34.91

76.88

63.76

92.70


HRG withcc (vs HRG without cc)

8.20

5.98

11.22

5.39

4.03

7.23


Age Category 1 and HRG withcc

0.88

0.53

1.46

0.79

0.51

1.22


Age Category 2 and HRG withcc

0.74

0.48

1.15

0.47

0.32

0.71


Age Category 3 and HRG withcc

0.46

0.30

0.69

0.56

0.39

0.81


Age Category 4 and HRG withcc

0.49

0.34

0.71

0.43

0.30

0.60


Age Category 5 and HRG withcc

0.40

0.28

0.56

0.41

0.30

0.57


Age Category 6 and HRG withcc

0.35

0.25

0.49

0.36

0.27

0.50


Age Category 7 and HRG withcc

0.16

0.11

0.22

0.10

0.08

0.14


Age Category 8 and HRG withcc

0.12

0.09

0.17

0.11

0.08

0.15


Age Category 9 and HRG withcc

0.13

0.09

0.19

0.12

0.09

0.16


Age Category 10 and HRG withcc

0.14

0.10

0.20

0.13

0.10

0.18


Age Category 11 and HRG withcc

0.17

0.11

0.24

0.14

0.10

0.19


Admission Quarter (Jul-Sep)*

1.09

1.02

1.16

0.96

0.92

1.01


Admission Quarter (Oct-Dec)

1.06

0.99

1.13

0.93

0.89

0.97


Admission Quarter (Jan-Mar)

1.14

1.07

1.22

1.06

1.02

1.11


Complex Elderly

16.83

15.38

18.41

3.05

2.91

3.18


Zero day stay!

0.09

0.07

0.11

-

-

-


Weekend vs. Weekday

1.32

1.23

1.41

1.09

1.05

1.13


† Reference category is age 16-39 years. * Reference category is Apr-Jun. Covariates terms with "and" indicate interaction terms. ! Not applicable for emergency admissions

Mohammed et al. BMC Health Services Research 2012 12:87   doi:10.1186/1472-6963-12-87

Open Data