Hip fracture and the influence of dementia on health outcomes and access to hospital-based rehabilitation for older individuals

Abstract

Background: For older individuals who sustain a hip fracture, the presence of dementia can influence their access to hospital-based rehabilitation.

Purpose: This study compares the characteristics and health outcomes of individuals with and without dementia following a hip fracture; and access to, and outcomes following, hospital-based rehabilitation in a population-based cohort.

Method: An examination of hip fractures involving individuals aged 65 years and older with and without dementia using linked hospitalisation, rehabilitation and mortality records during 2009-2013.

Results: There were 8785 individuals with and 23 520 individuals without dementia who sustained a hip fracture. Individuals with dementia had a higher age-adjusted 30-d mortality rate compared to individuals without dementia (11.7% versus 5.7%), a lower proportion of age-adjusted 28-d re-admission (17.3% versus 24.4%) and a longer age-adjusted mean length of stay (22.2 versus 21.9 d). Compared to individuals without dementia, individuals with dementia had 4.3 times (95% CI: 3.90-4.78) lower odds of receiving hospital-based rehabilitation. However, when they did receive rehabilitation they achieved significant motor functional gain at discharge compared to admission using the Functional Independence Measure, but to a lesser extent than individuals without dementia.

Conclusion: Within a population-based cohort, older individuals with dementia can benefit from access to, and participation in, rehabilitation activities following a hip fracture. This will ensure that they have the best chance of returning to their pre-fracture physical function and mobility. Implications for Rehabilitation Older individuals with dementia can benefit from rehabilitation activities following a hip fracture. Early mobilisation of individuals post-hip fracture surgery, where possible, is advised. Further work is needed on how best to work with individuals with dementia after a hip fracture in residential aged care to maximise any potential functional gains.

Keywords: Dementia; hip fracture; hospitalisation; older adults.