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Prevention of falls in nursing homes: subgroup analyses of a randomized fall prevention trial
Kilian Rapp1, Sarah E Lamb, Gisela Büchele
1Department of Clinical Gerontology, Robert-Bosch Hospital, Stuttgart, Germany. kilian.rapp@rbk.de
Objectives:
To evaluate the effectiveness of a multifactorial fall prevention program in prespecified subgroups of nursing home residents.
Design:
Secondary analysis of a cluster-randomized, controlled trial.
Setting:
Six nursing homes in Germany.
Participants:
Seven hundred twenty-five long-stay residents; median age 86; 80% female.
Intervention:
Staff and resident education on fall prevention, advice on environmental adaptations, recommendation to wear hip protectors, and progressive balance and resistance training.
Measurements:
Time to first fall and the number of falls. Falls were assessed during the 12-month intervention period. Univariate regression analyses were performed, including a confirmatory test of interaction.
Results:
The intervention was more effective in people with cognitive impairment (hazard ratio (HR)=0.49, 95% confidence interval (CI)=0.35-0.69) than in those who were cognitively intact (HR=0.91, 95% CI=0.68-1.22), in people with a prior history of falls (HR=0.47, 95% CI=0.33-0.67) than in those with no prior fall history (HR=0.77, 95% CI=0.58-1.01), in people with urinary incontinence (HR=0.59, 95% CI=0.45-0.77) than in those with no urinary incontinence (HR=0.98, 95% CI=0.68-1.42), and in people with no mood problems (incidence rate ratio (IRR)=0.41, 95% CI=0.27-0.61) than in those with mood problems (IRR=0.74, 95% CI=0.51-1.09).
Conclusion:
The effectiveness of a multifactorial fall prevention program differed between subgroups of nursing home residents. Cognitive impairment, a history of falls, urinary incontinence, and depressed mood were important in determining response.
