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J Psychosom Res. 2014 Jan;76(1):68-74. doi: 10.1016/j.jpsychores.2013.10.006. Epub 2013 Oct 16.

Delirium is a risk factor for institutionalization and functional decline in older hip fracture patients.

Author information

1
Department of Geriatric Medicine, Oslo University Hospital, Norway; Institute of Clinical Medicine, University of Oslo, Norway. Electronic address: mariakrogseth@gmail.com.
2
Department of Geriatric Medicine, Oslo University Hospital, Norway; Institute of Clinical Medicine, University of Oslo, Norway. Electronic address: t.b.wyller@medisin.uio.no.
3
Institute of Clinical Medicine, University of Oslo, Norway; Norwegian Centre for Ageing and Health, Oslo University Hospital, Norway.
4
Department of Geriatric Medicine, Oslo University Hospital, Norway; Department of Cardiology, Ullevaal, Oslo University Hospital, Norway.

Abstract

OBJECTIVES:

The risk of institutionalization and functional decline is substantial after a hip fracture. However, previous research has not established the extent to which delirium plays a contributory role.

METHODS:

Using a prospective design, we studied 207 hip fracture patients aged 65 and older, home-dwelling before the fracture. Patients were screened daily for delirium using the Confusion Assessment Method. Proxy information on pre-fracture cognitive function and function in activities of daily living (ADL) was obtained using the Informant Questionnaire on Cognitive Decline in the Elderly, 16-item version, and the Barthel ADL Index. After 6months, the patients' functions in ADL measured by the Barthel ADL Index and place of living were registered.

RESULTS:

Delirium was present in 80 patients (39%) during the hospital stay. After 6months, 33 (16%) were institutionalized. Delirium and lower Barthel ADL Index score were the main risk factors for institutionalization with an adjusted odds ratio (AOR) of 5.50 (95% CI=1.77-17.11) and 0.54 (95% CI=0.40-0.74) respectively. In patients able to return to their private home, the independent risk factors for functional decline were higher age (B=0.053, 95% CI=0.003-0.102) and delirium (B=0.768, 95% CI=0.039-1.497).

CONCLUSIONS:

At 6month follow-up, delirium constitutes an independent risk factor for institutionalization and functional decline in hip fracture patients living at home prior to the fracture.

KEYWORDS:

Delirium; Elderly; Functional decline; Hip fracture; Institutionalization

[Indexed for MEDLINE]

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