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Table 4 Odds ratios for the final variables retained in the predictive algorithm

From: Using routine inpatient data to identify patients at risk of hospital readmission

Parameter Odds ratio 95% CI p-value
Age Group    
0–17 years 1.00 -  
18–39 years 0.94 0.74–1.19 0.60
40–64 years 1.09 0.88–1.36 0.43
65–74 years 1.32 1.06–1.65 0.02
75+ years 1.30 1.05–1.61 0.02
SEIFA1    
Most disadvantaged 1.00 -  
Quintile 2 0.85 0.78–0.94 0.001
Quintile 3 0.96 0.86–1.06 0.39
Quintile 4 0.79 0.71–0.89 0.0001
Least Disadvantaged 0.80 0.68–0.94 0.007
ARIA2    
Major city 1.00 -  
Inner Regional 1.01 0.92–1.11 0.81
Outer Regional 1.10 1.00–1.22 0.04
Remote 1.30 1.04–1.62 0.02
Very Remote 1.36 1.08–1.73 0.01
Co-morbidities    
Anaemia 1.31 1.16–1.47 0.001
Acute coronary syndrome 1.14 1.04–1.25 0.005
Heart failure 1.25 1.12–1.38 <0.0001
Peripheral vascular disease 1.32 1.10–1.58 0.003
Malignant neoplasms 1.29 1.10–1.51 0.002
COPD 1.21 1.10–1.34 0.0002
Mental disorder (alcohol) 1.42 1.16–1.74 0.001
Diabetes 1.27 1.16–1.39 <0.0001
Chronic renal failure 1.30 1.12–1.52 0.001
Mood disorders 1.22 1.00–1.50 0.06
Liver diseases 1.45 1.06–1.99 0.02
Any previous admission    
Past year    
None 1.00 -  
One 1.14 1.01–1.28 0.03
Two or more 1.63 1.38–1.91 <0.0001
Past 3 years    
None 1.00 -  
One 1.45 1.31–1.62 <0.0001
Two or more 1.74 1.53–1.98 <0.0001
  1. 1Socio-Economic Indexes for Areas
  2. 2Accessibility/Remoteness Index of Australia