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. 2009 Dec 11:9:228.
doi: 10.1186/1472-6963-9-228.

Fall-related injuries in a nursing home setting: is polypharmacy a risk factor?

Federico Baranzini  1 , Marcello Diurni, Francesca Ceccon, Nicola Poloni, Sara Cazzamalli, Chiara Costantini, Cristiano Colli, Laura Greco, Camilla Callegari
Affiliations

Fall-related injuries in a nursing home setting: is polypharmacy a risk factor?

Federico Baranzini et al. BMC Health Serv Res. .

Abstract

Background: Polypharmacy is regarded as an important risk factor for fallingand several studies and meta-analyses have shown an increased fall risk in users of diuretics, type 1a antiarrhythmics, digoxin and psychotropic agents. In particular, recent evidence has shown that fall risk is associated with the use of polypharmacy regimens that include at least one established fall risk-increasing drug, rather than with polypharmacy per se. We studied the role of polypharmacy and the role of well-known fall risk-increasing drugs on the incidence of injurious falls.

Methods: A retrospective observational study was carried out in a population of elderly nursing home residents. An unmatched, post-stratification design for age class, gender and length of stay was adopted. In all, 695 falls were recorded in 293 residents.

Results: 221 residents (75.4%) were female and 72 (24.6%) male, and 133 (45.4%) were recurrent fallers. 152 residents sustained no injuries when they fell, whereas injuries were sustained by 141: minor in 95 (67.4%) and major in 46 (32.6%). Only fall dynamics (p = 0.013) and drugs interaction between antiarrhythmic or antiparkinson class and polypharmacy regimen (> or =7 medications) seem to represent a risk association for injuries (p = 0.024; OR = 4.4; CI 95% 1.21 - 15.36).

Conclusion: This work reinforces the importance of routine medication reviews, especially in residents exposed to polypharmacy regimens that include antiarrhythmics or antiparkinson drugs, in order to reduce the risk of fall-related injuries during nursing home stays.

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Figures

Figure 1
Figure 1
Influence of medication combinations on the OR for an injurious fall event compared with a fall with no injury.
See this image and copyright information in PMC

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