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Table 5 Variables associated with readmission to hospital within 30 days of dischargea

From: Risk factors for hospital readmission in older adults within 30 days of discharge – a comparative retrospective study

Variable OR 95% CI p-value
Gender 0.89 0.63–1.25 0.500
Emergent admission 1.43 0.73–2.77 0.297
Charlson Comorbidity Index 1.12 1.04–1.20 0.002
Number of hospitalisations 12 months 1.41 1.19–1.68 < 0.001
Length of stay 5 days or longer 1.72 1.18–2.49 0.005
Day of discharge (reference: Monday-Thursday)    0.007
 Friday/Day before weekend/holiday 1.88 1.24–2.87 0.003
 Weekend/Holiday 0.83 0.44–1.54 0.551
Discharging unit (reference: Internal medicine)    0.004
 General surgery 2.09 1.34–3.24 0.001
 Infection 0.54 0.26–1.13 0.101
 Orthopaedics 1.02 0.53–1.96 0.949
 Gynaecology/Ear Nose Throat 1.47 0.55–3.93 0.442
Living in own home with home care 1.61 1.06–2.45 0.025
Major surgery performed during Index 0.59 0.37–0.94 0.027
Excessive polypharmacyb 1.66 1.15–2.40 0.007
  1. Abbreviations: CI Confidence Interval
  2. aAdjusted for gender, type of admission and age (within the age-adjusted Charlson Comorbidity Index) bDefined as the daily use of 10 medications or more
  3. Hosmer Lemeshow goodness of fit test p-value: 0.457. Nagelkerke R2: 0.228.
  4. Significant p-values are indicated in bold.