Abstract

OBJECTIVE To assess the prevalence and factors associated with falls in a nationally representative sample of older Brazilians residing in urban areas.METHODS Data from 4,174 participants (60 years or older) from the baseline of ELSI-Brazil, conducted between 2015 and 2016, were used. The outcome variable was the reporting of one or more falls in the last 12 months. The exploratory variables were sociodemographic characteristics, factors related to the urban environment, and health conditions. Statistical analysis was performed using Poisson regression.RESULTS The prevalence of falls was 25.1%. Of these, 1.8% resulted in a hip or femur fracture and, among them, 31.8% required surgery for prosthesis placement. Statistically significant associations (p < 0.05) with falls were observed for females [prevalence ratio (PR) = 1.26], age group of 75 years or older (PR = 1.21), fear of falling due to defective sidewalks (PR = 1.47), fear of crossing streets (PR = 1.22), diabetes (PR = 1.17), arthritis or rheumatism (PR = 1.29), and depression (PR = 1.53). No significant associations were found for educational level, marital status, hypertension, and perception of violence in the neighborhood.CONCLUSIONS The factors associated with falls among older adults are multidimensional, comprising individual characteristics and the urban environment, which indicates the need for intra and intersectoral actions to prevent falls in this population.

The aim was to analyze the prevalence of falls requiring visits to health services and associated sociodemographic factors in the elderly in the Brazilian National Health Survey (PNS), 2013. This was a cross-sectional population-based study using data on 23,815 elderly Brazilians from the PNS 2013 survey. The outcome variable was falls requiring use of a health service. Crude and adjusted analyses were performed with robust Poisson regression, with prevalence ratio as the measure of effect and the respective 95% confidence interval (95%CI). The stepwise-forward method was used for inclusion of the variables in the multivariate model. The prevalence of falls with the need to seek health services was 7.8% (95%CI: 7.3-8.4). The administrative region with the lowest occurrence of falls was the Southeast (7.3%), and Rondônia was the state with the lowest prevalence (5.3%). In the multivariate analysis, falls were associated with age 75 years or older, female sex, and divorced or separated marital status. The nationally representative data produced by the PNS survey can enhance measures to prevent falls throughout Brazil.

Only few epidemiological data on legionella diseases are available in Germany and studies on the prevalence of legionella antibody response in the population are scarce. We report on an epidemiological study on immune response in residents of homes with heavy and with minor legionella contamination in their hot-water system. 53 inhabitants of houseblocks with central hot-water system and high legionella contamination (6,049 +/- 17,995 cfu/l; 40% > 1,000 cfu/l) were studied. 92 persons living in 1-2 family houses with decentral hot water systems (244 +/- 1,434 cfu/l; 3% > 1,000 cfu/l) served as controls. All persons filled in a questionnaire on bronchial and fever diseases etc; blood specimen were tested for legionella antibodies (different methods: immunofluorescence, and ELISA), and urine specimens were analysed for legionella antigen. During this investigation in the population exposed to Legionella no cases of legionellosis were reported. The prevalence of legionella antibodies was twice as high in the exposed versus the control persons. Significant correlation between cfu/l and legionella antibody titer in the inhabitants were found. One person with high antibody titer and with legionella-free hot-water system in his home had reported about pulmonary problems after having stayed in a hotel. The positive antibodies of the other persons are most likely the result of asymptomatic infections caused by permanent exposure in their home hot-water supply. In conclusion, with regard to the increased prevalence of antibody titers against legionellae in the exposed inhabitants and the significant correlation between antibody titers and cfu/l in hot-water samples, the necessity to control and redevelop hot-water systems in homes is confirmed--even though no cases of legionelloses in the exposed population were reported.

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