Falls represent a major public health challenge for Brazil's rapidly aging population, leading to injuries, hospitalizations, and loss of independence among older adults. A groundbreaking study led by researchers at the Universidade Federal de Santa Catarina (UFSC) has shed new light on the scale of this issue, estimating that approximately 3.5 million Brazilians aged 60 and older are at high risk of falls. Published in the European Geriatric Medicine, the research utilizes data from the Brazilian Longitudinal Study of Aging (ELSI-Brazil), marking the first application of the World Guidelines for Falls Prevention and Management (WGF) algorithm to a nationally representative sample in the country.

This finding underscores the urgency for enhanced screening and intervention strategies within Brazil's public health system, particularly through universities like UFSC that are at the forefront of geriatric research. With Brazil's elderly population projected to reach 32 million by 2030 according to IBGE estimates, proactive measures could prevent thousands of injuries annually.

Understanding the UFSC Study Methodology

The UFSC-led study analyzed data from 7,515 participants aged 60 and older collected between 2023 and 2024 as part of ELSI-Brazil, a multicenter cohort study involving institutions across the country, including Fiocruz and several universities. ELSI-Brazil (Estudo Longitudinal da Saúde dos Idosos Brasileiros) provides robust, nationally representative insights into aging, covering urban areas where most older Brazilians reside.

Researchers applied the WGF algorithm in two ways: first, using only fall history in the past 12 months (traditional method), and second, incorporating three key screening questions—history of falls, fear of falling (assessed via the Falls Efficacy Scale-International, FES-I), and gait instability (via the one-leg stand test). This simple, low-cost approach dramatically improved risk stratification without requiring expensive equipment.

Key Findings: A Shift in Risk Classification

Under the traditional method, 82.2% of participants were low risk, 7.8% intermediate, and 10% high risk. However, the full WGF algorithm revealed a starkly different picture: only 50.4% low risk, 34.6% intermediate (a quadrupling), and 15% high risk. This reclassification highlights how relying solely on fall history misses many at-risk individuals who fear falling or have balance issues but haven't fallen yet.

Extrapolating to Brazil's 2022 census population of over 23 million aged 60+, this translates to roughly 3.5 million in the high-risk category alone. Intermediate-risk individuals, numbering around 8 million, require targeted interventions to prevent progression.

Regional Disparities Across Brazil

The study uncovered notable regional variations, with older adults in the Northeast and Southeast more likely to be intermediate risk compared to the South when using the full algorithm. No such differences appeared in the traditional method. Factors like socioeconomic inequalities, cultural differences in physical activity, and uneven access to healthcare likely contribute. For instance, Southern Brazil's better infrastructure and higher income levels may support better balance and mobility training.

Universities like UFSC in the South play a crucial role in disseminating these findings to inform region-specific policies through collaborations with SUS (Sistema Único de Saúde).

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Common Causes of Falls in Brazilian Elderly

Intrinsic factors dominate: muscle weakness, poor balance, visual impairment, polypharmacy (multiple medications), and chronic conditions like hypertension or diabetes, prevalent in 70-80% of Brazilian seniors per Ministério da Saúde data. Extrinsic risks include slippery floors, poor lighting, loose rugs, and inadequate footwear—exacerbated in urban favelas or rural homes.

Brazilian studies show 25% annual fall prevalence in urban elderly, rising to 40% for those over 80, with 63% lifetime prevalence. Women, low-income groups, and those with prior falls face higher odds.

• Medication-related: Benzodiazepines and antihypertensives increase risk by 50%.
• Environmental: 20-58% of falls linked to irregular surfaces or obstacles.
• Age-related: Sarcopenia (muscle loss) affects 15-20% over 65.

Proven Prevention Strategies Backed by Evidence

The WGF algorithm guides tiered responses: education for low risk, physiotherapy for intermediate, and multidisciplinary evaluation for high risk. Key interventions include:

• Strength and balance exercises (e.g., Tai Chi), reducing falls by 20-30% per meta-analyses.
• Vitamin D supplementation for deficient elderly (common in Brazil due to indoor lifestyles).
• Home modifications: grab bars, non-slip mats—cost-effective via SUS programs.
• Medication reviews to deprescribe sedatives.

UFSC researchers emphasize routine screening in primary care to implement these early. For details on the algorithm, see the full paper here.

SUS Programs and University Contributions

Brazil's SUS integrates fall prevention through Atenção Básica, with campaigns like HU-UFSC's "Prevenir Quedas Protege Vidas," targeting over-75s who account for 70% of fall-related hospitalizations. Ministério da Saúde reports 150,000 projected hospitalizations by 2025, costing R$260 million.

Universities drive innovation: UFSC's physiotherapy department leads training, while ELSI-Brazil fosters multicenter research. Proposals for a National Fall Prevention Program align resources, as advocated by lead author Núbia Carelli Pereira de Avelar: "This stratification allows better allocation of limited resources in middle-income countries."

Check Ministério da Saúde guidelines for home safety here.

Expert Perspectives from UFSC and Beyond

Núbia Carelli Pereira de Avelar notes, "Brazil lacked a specific method for risk classification before this." Collaborators from Fiocruz highlight policy implications amid rising elderly falls (11% increase in some states).

Geriatricians stress multifactorial approaches: a SBGG review identifies polypharmacy in 50% of cases. UFSC's work positions Brazilian higher education as key to evidence-based geriatrics.

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Case Studies: Real-World Impacts

In Florianópolis, UFSC-linked clinics report 20% fall reduction post-screening pilots. Nationally, Paraná saw 13,000 hospitalizations in 2025; early WGF use could halve this via targeted physio.

A 75-year-old from Northeast, reclassified intermediate due to FES-I score, benefited from balance training, avoiding hospitalization. Such stories illustrate scalability.

Future Outlook and Actionable Insights

With demographic shifts, falls could cost billions; UFSC urges WGF integration into SUS protocols. Universities must expand geriatric training—opportunities abound for researchers and faculty.

Action steps: Screen with 3 questions at checkups, promote exercise (30 min/day), review meds annually. Policymakers: Fund national program modeled on UK's successes, leveraging UFSC expertise.