Frailty is common and associated with poorer outcomes in the elderly, but its role as potential cardiovascular disease (CVD) risk factor requires clarification. We thus aimed to meta-analytically evaluate the evidence of frailty and pre-frailty as risk factors for CVD. Two reviewers selected all studies comparing data about CVD prevalence or incidence rates between frail/pre-frail vs. robust. The association between frailty status and CVD in cross-sectional studies was explored by calculating and pooling crude and adjusted odds ratios (ORs) ±95% confidence intervals (CIs); the data from longitudinal studies were pooled using the adjusted hazard ratios (HRs). Eighteen cohorts with a total of 31,343 participants were meta-analyzed. Using estimates from 10 cross-sectional cohorts, both frailty and pre-frailty were associated with higher odds of CVD than robust participants. Longitudinal data were obtained from 6 prospective cohort studies. After a median follow-up of 4.4 years, we identified an increased risk for faster onset of any-type CVD in the frail (HR=1.70 [95%CI, 1.18–2.45]; I2=66%) and pre-frail (HR=1.23 [95%CI, 1.07–1.36]; I2=67%) vs. robust groups. Similar results were apparent for time to CVD mortality in the frail and pre-frail groups. In conclusion, frailty and pre-frailty constitute addressable and independent risk factors for CVD in older adults.

OBJECTIVE:Frailty syndrome can be defined as a state of vulnerability to stressors resulting from a decrease in functional reserve across multiple systems and compromising an individual's capacity to maintain homeostasis. The purpose of this study was to determine the prevalence of frailty and its association with social and demographic factors, functional capacity, cognitive status and self-reported comorbidities in a sample of community-dwelling older individuals who are clients of a healthcare plan.METHODS:We evaluated 847 individuals aged 65 years or older who lived in the northern area of the city of Rio de Janeiro, Brazil. The subjects were selected by inverse random sampling and stratified by gender and age. To diagnose frailty, we used the scale proposed by the Cardiovascular Health Study, which consisted of the following items: low gait speed, grip strength reduction, feeling of exhaustion, low physical activity and weight loss. The data were collected between 2009 and 2010, and the frailty prevalence was calculated as the proportion of individuals who scored positive for three or more of the five items listed above. To verify the association between frailty and risk factors, we applied a logistic regression analysis.RESULTS:The prevalence of frailty syndrome was 9.1% (95% confidence interval [CI], 7.3-11.3); 43.6% (95% CI, 40.3-47) of the individuals were considered robust, and 47.3% (95% CI 43.8-50.8) were considered pre-frail (p<0.001). The frail individuals tended to be older (odds ratio [OR] 13.2, 95% CI, 8.7-20) and have lower education levels (OR 2.1, 95% CI, 1-4.6), lower cognitive performance (OR 0.76, 95% CI, 0.73-0.79) and reduced health perception (OR 65.8, 95% CI, 39.1-110.8). Frail individuals also had a greater number of comorbidities (OR 6.6, 95% CI, 4.4-9.9) and worse functional capacity (OR 3.8, 95% CI, 2.9-5).CONCLUSION: The prevalence of frailty was similar to that seen in other international studies and was significantly associated with educational level, cognition, comorbidities, functional capacity, perception of health and old age.

Estudos e pesquisas Divulga estudos descritivos e análises de resultados de tabulações especiais de uma ou mais pesquisas, de autoria institucional. A série Estudos e pesquisas está subdividida em: Informação

No abstract

OBJECTIVES: Sarcopenia is a common treatable geriatric condition. The aim of this study was to estimate the prevalence of sarcopenia and its associated factors in community-dwelling elderly living in Rio de Janeiro, Brazil, and to discuss the impact of different muscle mass, handgrip strength and gait speed cut-off values on the reported frequency of sarcopenia. METHODS: The health habits, functional capacity, and anthropometric measurements of 745 individuals aged ≥65 years from the Frailty in Brazilian Older People study were analyzed. The participants were classified into the following four groups: no sarcopenia, pre-sarcopenia, sarcopenia and severe sarcopenia. Univariate and multivariate regression analyses were performed. Muscle mass, handgrip strength and gait speed cut-off thresholds tailored to the sample and those proposed by the European Working Group on Sarcopenia in Older People were used to compare the prevalence rates of sarcopenia. RESULTS: Seventy-three percent of the participants were female, 61.9% were Caucasian, and the mean age was 76.6 years. The prevalence rates of sarcopenia were 10.8% and 18% using the sample-tailored and European consensus cut-off values, respectively. Sarcopenia was associated with advanced age (OR: 37.2; CI95%12.35-112.48), Caucasian race (OR: 1.89; CI 95% 1.02-3.52), single marital status (OR:6; CI95% 2.2-16.39), low income (OR:3.64; CI 95% 1.58-8.39), and the presence of comorbidities (OR:3.26; CI 95%1.28-8.3). CONCLUSION: In this study, the estimated prevalence of sarcopenia was similar to that reported in most studies after the tailored handgrip strength and gait speed cut-off values were adopted. A higher prevalence was observed when the cut-off values suggested by the European consensus were used. This indicates that the prevalence of sarcopenia must be estimated using population-specific reference values.

A síndrome de fragilidade está associada a eventos indesejáveis, como incapacidade e morte. No Brasil, é uma condição pouco conhecida. O objetivo do presente relato é apresentar a metodologia de trabalho utilizada no FIBRA-RJ, seção Rio de Janeiro do estudo Fragilidade em Idosos Brasileiros (FI-BRA-BR), desenvolvido para superar esta lacuna. A linha de base (primeira fase) do estudo FIBRA-RJ foi desenvolvida em 2009-2010. A amostra (847 indivíduos, ≥ 65 anos, clientes de uma operadora de saúde) foi aleatória, estratificada por sexo e idade. Teve como objetivo estimar a prevalência de fragilidade e seus fatores associados. A segunda fase (2010-2011) teve como objetivo estimar a prevalência da demência e seus fatores associados. A terceira fase (2012-2013) buscou estimar a prevalência e incidência de sarcopenia/obesidade sarcopênica e seus fatores associados. A prevalência de fragilidade foi de 9,1%; esteve associada a idade, menores escolaridade e cognição, percepção de saúde negativa, comorbidades e pior funcionalidade. A prevalência de demência foi de 16,9%; esteve associada a idade e analfabetismo. No total, foram publicados onze artigos, quatro dissertações e duas teses; outras sete dissertações e teses estão em andamento, incluindo resultados da terceira fase. O FIBRA-RJ tem relatado estudos descritivos com conhecida limitação associada à causalidade reversa. A fase 3 nos permitirá estudar incidências e validade preditiva de biomarcadores vis-à-vis mortalidade, desfechos adversos e uso de serviços de saúde. O FIBRA-RJ representa um grande avanço no conhecimento sobre os agravos de saúde que acometem a população idosa brasileira.

Major adverse cardiovascular events are closely associated with 24-hour blood pressure (BP). We determined outcome-driven thresholds for 24-hour mean arterial pressure (MAP), a BP index estimated by oscillometric devices. We assessed the association of major adverse cardiovascular events with 24-hour MAP, systolic BP (SBP), and diastolic BP (DBP) in a population-based cohort (n=11 596). Statistics included multivariable Cox regression and the generalized R 2 statistic to test model fit. Baseline office and 24-hour MAP averaged 97.4 and 90.4 mm Hg. Over 13.6 years (median), 2034 major adverse cardiovascular events occurred. Twenty-four-hour MAP levels of <90 (normotension, n=6183), 90 to <92 (elevated MAP, n=909), 92 to <96 (stage-1 hypertension, n=1544), and ≥96 (stage-2 hypertension, n=2960) mm Hg yielded equivalent 10-year major adverse cardiovascular events risks as office MAP categorized using 2017 American thresholds for office SBP and DBP. Compared with 24-hour MAP normotension, hazard ratios were 0.96 (95% CI, 0.80–1.16), 1.32 (1.15–1.51), and 1.77 (1.59–1.97), for elevated and stage-1 and stage-2 hypertensive MAP. On top of 24-hour MAP, higher 24-hour SBP increased, whereas higher 24-hour DBP attenuated risk ( P <0.001). Considering the 24-hour measurements, R 2 statistics were similar for SBP (1.34) and MAP (1.28), lower for DBP than for MAP (0.47), and reduced to null, if the base model included SBP and DBP; if the ambulatory BP indexes were dichotomized according to the 2017 American guideline and the proposed 92 mm Hg for MAP, the R 2 values were 0.71, 0.89, 0.32, and 0.10, respectively. In conclusion, the clinical application of 24-hour MAP thresholds in conjunction with SBP and DBP refines risk estimates.

Resumo Fragilidade é um estado de vulnerabilidade fisiológica multissistêmica relacionada à idade e a um risco aumentado de desfechos adversos. O objetivo do presente estudo foi avaliar a prevalência e os fatores associados à fragilidade no estudo FIBRA em Minas Gerais, Brasil. Selecionou-se uma amostra aleatória, estratificada por unidade territorial, sexo e idade, de 461 indivíduos, com 65 anos ou mais. A fragilidade foi estabelecida pela presença de três ou mais de cinco itens: sensação de exaustão, baixa força de preensão manual, velocidade da marcha lenta, perda de peso e baixo gasto calórico. A média de idade foi de 74,4 anos (DP± 6,8), 69,6% eram mulheres e 71,9% brancos. A prevalência de fragilidade foi de 5,2%; 49,9% foram de indivíduos pré-frágeis. Idade avançada (OR: 6,4; IC 1,76-23,8), comprometimento das atividades básicas de vida diária (OR: 5,2; IC 1,1-23,1) e auto percepção de saúde ruim (OR: 0,13; IC 0,03-0,4), foram associados à fragilidade. No presente estudo, um número substancial de indivíduos apresentou-se frágil, enquanto que metade da amostra estava sob risco de progressão para esta condição, sugerindo que é urgente a adoção de medidas de saúde pública com objetivo de prevenção e redução de complicações.