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Table 2 Odds ratios of different variables predictive of readmission

From: Roles of disease severity and post-discharge outpatient visits as predictors of hospital readmissions

  Unadjusted odds ratio (95 % CI) Saturated odds ratio (95 % CI) Adjusted odds ratio (Final) (95 % CI) VIF
Homeless 1.54 (1.36–1.73) 1.34 (1.12–1.61) 1.35 (1.19–1.53) 1.02
Severity of Illness 1.72 (1.67–1.77) 1.16 (1.09–1.24) 1.31 (1.25–1.38) 2.07
Risk of Mortality 1.59 (1.54–1.63) 1.16 (1.09–1.23) 1.09 (1.05–1.14) 2.17
No Insurance 0.72 (0.67–0.78) 0.70 (0.63–0.79) 0.69 (0.63–0.74) 1.05
Prescription Ratio ≥0.5 0.29 (0.27–0.31) 0.46 (0.43–0.50) 0.33 (0.31–0.35) 1.04
Age 1.02 (1.02–1.02) 0.99 (0.99–1.00)   
Gender 1.05 (1.00–1.10) 0.98 (0.91–1.06)   
In-hospital Length of Stay 1.03 (1.02–1.03) 1.01 (1.01–1.02)   
History of Psychiatric Disease 1.03 (1.01–1.06) 1.00 (1.00–1.00)   
History of Substance Abuse 1.06 (0.93–1.21)    
Final Model C-statistics    0.73  
  1. Hosmer-Lemeshow goodness of fit test: χ2 = 1.68, p = 0.143
  2. Abbreviation: CI Confidence Interval
  3. All adjusted odds ratios demonstrated statistical and clinical significance (p < 0.05)