Table 4 Multilevel logistic regression analysis: adjusted odds ratios of DHD as a function of patients’ characteristics, operative unit discipline and type of hospital
| Â | Adj. OR | p-value | 95%CI |
|---|---|---|---|
Patients’ characteristics |  |  |  |
Age (decades) | 1.24 | <0.001 | 1.16–1.33 |
Provision of intensive care | Â | Â | Â |
No | 1 | Â | Â |
Yes | 1.87 | 0.026 | 1.08–3.23 |
Primary diagnosis | Â | Â | Â |
Dementia | 3.47 | 0.001 | 1.65–7.28 |
Tumour | 1.71 | 0.007 | 1.16–2.51 |
Femoral/Shoulder fractures | 1.52 | 0.013 | 1.09–2.11 |
Number of comorbidities | Â | Â | Â |
None | 1 | Â | Â |
One | 1.92 | 0.006 | 1.21–3.04 |
Two or more | 2.03 | <0.001 | 1.45–2.84 |
Operative unit and hospital characteristics | Â | Â | Â |
Operative unit discipline | Â | Â | Â |
General surgery | 1 | Â | Â |
Geriatrics | 1.38 | 0.299 | 0.75–2.54 |
Internal medicine | 1.78 | 0.045 | 1.01–3.14 |
Orthopaedics/Traumatology | 3.92 | <0.001 | 2.24–6.85 |
Long-term/Rehabilitation | 5.65 | <0.001 | 3.02–10.56 |
Type of hospital | Â | Â | Â |
Local Health Authority Hospital | 1 | Â | Â |
Hospital Trust | 1.69 | 0.012 | 1.12–2.54 |