Posturographic measures did not improve the predictive power to identify recurrent falls in community-dwelling elderly fallers.

OBJECTIVE: This study aimed to evaluate if posturography can be considered a recurrent fall predictor in elderly individuals. METHODS: This was a cross-sectional study. A total of 124 subjects aged 60 to 88 years were evaluated and divided into two groups-the recurrent fallers (89) and single fallers (35) groups. Patients' sociodemographic characteristics were assessed, and clinical testing was performed. The functional test assessment instruments used were timed up and go test (TUGT), Berg Balance Scale (BBS), five times sit-to-stand test, and Falls Efficacy Scale (to measure fear of falling). Static posturography was performed in a force platform in the following three different situations-eyes open (EO), eyes closed (EC), and EO dual task. RESULTS: There were significant differences between the single and recurrent fallers groups regarding the fear of falling, the Geriatric Depression Scale score, the mean speed calculated from the total displacement of the center point of pressure (COP) in all directions with EO, and the root mean square of the displacement from the COP in the mediolateral axis with EC. Based on the hierarchical logistic regression model, none of the studied posturographic variables was capable of significantly increasing the power of differentiation between the recurrent and single fallers groups. Only TUGT with a cognitive distractor (p<0.05) and the BBS (p<0.01) presented with significant independent predictive power. CONCLUSION: TUGT with a cognitive distractor and the BBS were considered recurrent fall predictors in elderly fallers.

Posturographic measures did not improve the predictive power to identify recurrent falls in community-dwelling elderly fallers

OBJECTIVE: This study aimed to evaluate if posturography can be considered a recurrent fall predictor in elderly individuals. METHODS: This was a cross-sectional study. A total of 124 subjects aged 60 to 88 years were evaluated and divided into two groups—the recurrent fallers (89) and single fallers (35) groups. Patients' sociodemographic characteristics were assessed, and clinical testing was performed. The functional test assessment instruments used were timed up and go test (TUGT), Berg Balance Scale (BBS), five times sit-to-stand test, and Falls Efficacy Scale (to measure fear of falling). Static posturography was performed in a force platform in the following three different situations—eyes open (EO), eyes closed (EC), and EO dual task. RESULTS: There were significant differences between the single and recurrent fallers groups regarding the fear of falling, the Geriatric Depression Scale score, the mean speed calculated from the total displacement of the center point of pressure (COP) in all directions with EO, and the root mean square of the displacement from the COP in the mediolateral axis with EC. Based on the hierarchical logistic regression model, none of the studied posturographic variables was capable of significantly increasing the power of differentiation between the recurrent and single fallers groups. Only TUGT with a cognitive distractor (p<0.05) and the BBS (p<0.01) presented with significant independent predictive power. CONCLUSION: TUGT with a cognitive distractor and the BBS were considered recurrent fall predictors in elderly fallers.

Using temporal orientation, category fluency, and word recall for detecting cognitive impairment: the 10-point cognitive screener (10-CS).

OBJECTIVES: A screening strategy composed of three-item temporal orientation and three-word recall has been increasingly used for detecting cognitive impairment. However, the intervening task administered between presentation and recall has varied. We evaluated six brief tasks that could be useful as intervening distractors and possibly provide incremental accuracy: serial subtraction, clock drawing, category fluency, letter fluency, timed visual detection, and digits backwards. METHODS: Older adults (n = 230) consecutively referred for suspected cognitive impairment underwent a comprehensive assessment for gold-standard diagnosis, of whom 56 (24%) presented cognitive impairment not dementia and 68 (30%) presented dementia. Among those with dementia, 87% presented very mild or mild stages (Clinical Dementia Rating 0.5 or 1). The incremental value of each candidate intervening task in a model already containing orientation and word recall was assessed. RESULTS: Category fluency (animal naming) presented the highest incremental value among the six candidate intervening tasks. Reclassification analyses revealed a net gain of 12% among cognitively impaired and 17% among normal participants. A four-point scaled score of the animal naming task was added to three-item temporal orientation and three-word recall to compose the 10-point Cognitive Screener. The education-adjusted 10-point Cognitive Screener outperformed the longer Mini-Mental State Examination for detecting both cognitive impairment (area under the curve 0.85 vs 0.77; p = 0.027) and dementia (area under the curve 0.90 vs 0.83; p = 0.015). CONCLUSIONS: Based on empirical data, we have developed a brief and easy-to-use screening strategy with higher accuracy and some practical advantages compared with commonly used tools.

Revisão de dois instrumentos clínicos de avaliação para predizer risco de quedas em idosos / Review of two clinical assessment tools to predict risk of falls in elderly

Introdução: Quedas são um problema clínico comum nos idosos, que pode reduzir sua mobilidade e independência. O uso de instrumentos simples para detecção do risco de quedas é fundamental para prevenção e tratamento de tais eventos. Não há, porém, consenso quanto aos testes mais adequados para cada situação. Objetivo: Revisar estudos sobre eficácia, sensibilidade e especificidade dos testes Timed Up and Go Test e Berg Balance Scale, a fim de verificar qual é o mais apropriado para predizer quedas em idosos. Métodos: Realizou-se revisão bibliográfica nas bases de dados MEDLINE, PubMed, ISI, LILACS e Portal de Periódicos CAPES, entre os anos de 2001 e 2011. Resultados: Foram selecionados 37 artigos, sendo 17 sobre a Berg Balance Scale e 20 sobre o Timed Up and Go Test. A revisão mostrou que os dois testes podem ser bons preditores de quedas, mas os artigos diferiram quanto à definição de queda e caidor, tipo de estudo, quantidade e característica da amostra e avaliação de quedas, levando a diferentes resultados quanto a nota de corte, sensibilidade, especificidade e predição de quedas. Há controvérsias quanto à capacidade de predição em perfis específicos, como os idosos ativos. Conclusão: Os testes avaliados são eficazes para predição de quedas, desde que adaptados para cada perfil. Novos estudos devem ser realizados com metodologia homogênea, a fim de favorecer a comparação de resultados sobre a eficácia desses testes. .

Introduction: Fall is a common problem in the elderly and it can reduce their mobility and independence. The use of simple tools to detect risk of falls is essential to prevent and treat such events. However, there is no consensus about the most appropriate tools for each situation. Objective: To review studies about efficacy, sensitivity and specificity of Timed Up and Go Test (TUGT) and Berg Balance Scale (BBS) in order to ascertain which is the most appropriate to predict falls in the elderly. Methods: We performed a literature review from MEDLINE, PubMed, ISI, LILACS and Portal de Periódicos CAPES databases, between 2001 and 2011. Results: We selected 17 different articles about BBS and 20 articles about TUGT. The review showed the two tools can be good predictors of falls. However, the articles differed in definition of fall and faller, type of study, quantity and characteristics of sample and assessment of falls, leading to different results as cutoff scores, sensitivity, specificity and prediction of fall. There is controversy about the ability of tools to predict falls in specific samples, such as active elderly. Conclusion: TUGT and BBS are effective to predict falls, provided they are adapted to each sample. Further studies should be performed using articles with homogeneous methods in order to support comparison of results about the effectiveness of tools. .

Effectiveness of a multifactorial falls prevention program in community-dwelling older people when compared to usual care: study protocol for a randomised controlled trial (Prevquedas Brazil).

BACKGROUND: Falling in older age is a major public health concern due to its costly and disabling consequences. However very few randomised controlled trials (RCTs) have been conducted in developing countries, in which population ageing is expected to be particularly substantial in coming years. This article describes the design of an RCT to evaluate the effectiveness of a multifactorial falls prevention program in reducing the rate of falls in community-dwelling older people. METHODS/DESIGN: Multicentre parallel-group RCT involving 612 community-dwelling men and women aged 60 years and over, who have fallen at least once in the previous year. Participants will be recruited in multiple settings in Sao Paulo, Brazil and will be randomly allocated to a control group or an intervention group. The usual care control group will undergo a fall risk factor assessment and be referred to their clinicians with the risk assessment report so that individual modifiable risk factors can be managed without any specific guidance. The intervention group will receive a 12-week Multifactorial Falls Prevention Program consisting of: an individualised medical management of modifiable risk factors, a group-based, supervised balance training exercise program plus an unsupervised home-based exercise program, an educational/behavioral intervention. Both groups will receive a leaflet containing general information about fall prevention strategies. Primary outcome measures will be the rate of falls and the proportion of fallers recorded by monthly falls diaries and telephone calls over a 12 month period. Secondary outcomes measures will include risk of falling, fall-related self-efficacy score, measures of balance, mobility and strength, fall-related health services use and independence with daily tasks. Data will be analysed using the intention-to-treat principle.The incidence of falls in the intervention and control groups will be calculated and compared using negative binomial regression analysis. DISCUSSION: This study is the first trial to be conducted in Brazil to evaluate the effectiveness of an intervention to prevent falls. If proven to reduce falls this study has the potential to benefit older adults and assist health care practitioners and policy makers to implement and promote effective falls prevention interventions. TRIAL REGISTRATION: ClinicalTrials.gov (NCT01698580).

Characterizing spontaneously reported cognitive complaints: the development and reliability of a classification instrument.

BACKGROUND: The characteristics and associated risks of spontaneously reported cognitive complaints have not been investigated due to the lack of a classification instrument. METHODS: In phase 1, a classification system with descriptive categories and cognitive domains was developed by experts through a modified Delphi technique. In phase 2, 180 elderly patients seeking medical attention for cognitive complaints provided free reports of their cognitive difficulties and each complaint was recorded verbatim. Three observers were asked to classify each complaint into a descriptive category. Perceived cognitive function was further characterized using the Memory Complaint Questionnaire (MAC-Q). RESULTS: The patients reported 493 spontaneous complaints, with a range of 1-6 complaints per patient and a mean of 2.7 (±1.3). The proportion of complaints that could be classified into a category by each of the three observers varied from 91.9% to 95.7%. Inter-observer agreement assessed using the κ statistic varied from 0.79 to 1 for descriptive categories and 0.83 to 0.97 for domains. Compared with the MAC-Q, spontaneously reported complaints provided complementary information by avoiding the cueing effect provoked by the questionnaire. The total number of complaints and their occurrences in specific domains were associated with important sociodemographic and clinical factors, indicating that their meaning and associated risks need to be further investigated. CONCLUSION: The instrument developed in this study proved to be a practical tool for classifying the majority of spontaneously reported cognitive complaints with high reliability. Further studies are needed to investigate clinical usefulness of this approach.