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The scope of this study was to estimate the prevalence and factors associated with severe falls among elderly Brazilians. It included a transversal study of 10,537 elderly individuals who participated in the National Health Survey (2013). The dependent variable was a report of severe falls in the past year. The independent variables comprised, hierarchically, socio-demographic factors, behavior, health status and functional capacity. Logistic regression was used to obtain the odds ratio (OR) and the confidence interval (95%CI), using the 13.1 Stata program. The prevalence of severe falls was 7.5% (95%CI: 6.7-8.3) and the highest odds were among women (OR: 1.35; 95%CI: 1.03-1.77), 70 to 79 years of age (OR: 1.47; 95%CI: 1.12-1.95) and 80 years and above (OR: 2.00; 95%CI: 1.46-2.74), living without a spouse/partner (OR: 1.37; 95%CI: 1.08-1.74), sedentary in leisure time (OR: 1.55; 95%CI: 1.06-2.26), having multimorbities (OR: 1.54; 95%CI: 1.19-2.00), sleeping difficulties (OR: 2.18; 95%CI: 1.65-2.88), limitations in daily activities (OR: 2.25; 95%CI 1.63 -3.10) and use of a walking aid (OR: 1.89; 95%CI: 1.30-2.73). The prevalence of severe falls was high and multifactorial, enabling the identification of profiles of greater vulnerability, which should be considered in public policies for specific interventions.

Prevalência de queda grave e fatores associados em idosos brasileiros: resultados da Pesquisa Nacional de Saúde, 2013