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

Table 5 Variables associated with readmission to hospital within 30 days of discharge^a

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 polypharmacy^b	1.66	1.15–2.40	0.007

Abbreviations: CI Confidence Interval
^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
Hosmer Lemeshow goodness of fit test p-value: 0.457. Nagelkerke R²: 0.228.
Significant p-values are indicated in bold.

ISSN: 1471-2318