Global Prevalence, Incidence, and Factors Influencing Falls in Older Adults With Dementia: Implications for Nursing and Healthy Aging.

Introduction: Dementia notably increases fall risk in older adults, leading to major injuries and considerable concerns from health-care professionals. However, comprehensive evidence regarding the prevalence, incidence rate, and moderating factors of falls in institutional settings is limited. This study aimed to evaluate the prevalence, incidence rates, and moderating factors of falls among older adults with dementia in nursing homes and dementia-specialized care units.

Design: A meta-analysis.

Methods: We searched CINAHL, PubMed, Embase, ProQuest, Scopus, Web of Science, and PsycINFO from database inception to April 30, 2024. Older adults with dementia in nursing homes or dementia-specialized care units were included. The pooled prevalence was analyzed using a generalized linear mixed model with random effects using R software. Incidence rates were reported per person-year using comprehensive meta-analysis software. Study quality was assessed using Hoy's criteria. Variations in the pooled prevalence of falls were explored through moderator analyses.

Results: This meta-analysis included 21 studies involving 35,449 participants. The pooled prevalence of falls was 45.6%, with subtypes showing 39.2%, 35.2%, and 29.0% among Alzheimer's dementia, vascular dementia, and mixed dementia subtypes, respectively. Falls were more prevalent in dementia-specialized care units (53.0%) than in nursing homes (42.6%). The overall incidence rate was 3.61 per person-year, higher in dementia-specialized care units (5.80) than in nursing homes (3.17). Subgroup analyses revealed higher fall prevalence in women (70.0%) than in men (30.6%). Meta-regression indicated that comorbidities, including delirium, visual impairment, and arthritis, increased fall risk.

Conclusions: This meta-analysis revealed a high incidence of falls in nearly half of older adults with dementia, particularly among those in dementia specialized care units.

Clinical relevance: Healthcare professionals should prioritize regular fall risk assessments, tailored interventions, and environmental safety modifications, particularly in dementia-specialized care units, to reduce fall-related injuries and improve patient outcomes.