Ligiana Pires Corona

Gender differences in incidence and determinants of disability in activities of daily living among elderly individuals: SABE study.

Determining the groups that are most susceptible to developing disability is essential to establishing effective prevention and rehabilitation strategies. The aim of the present study was to determine gender differences in the incidence of disability regarding activities of daily living (ADL) and determinants among elderly residents of Sao Paulo, Brazil. In 2000, 1634 elderly with no difficulties regarding ADL (modified Katz Index) were selected. These activities were reassessed in 2006 and disability was the outcome for the analysis of determinants. The following characteristics were analyzed at baseline: socio-demographic, behavioral, health status, medications, falls, hospitalizations, depressive symptoms, cognition, handgrip, mobility and balance. The incidence density was 42.4/1000 women/year and 17.5/1000 men/year. After adjusting for socioeconomic status and health conditions, women with chronic diseases and social vulnerability continued to have a greater incidence of disability. The following were determinants of the incidence of disability: age and depressive symptoms in both genders; stroke and slowness on the sit-and-stand test among men; and osteoarthritis and sedentary lifestyle among women. Better cognitive performance and handgrip strength were protective factors among men and women, respectively. Adverse clinical and social conditions determine differences between genders regarding the incidence of disability. Decreased mobility and balance and health conditions that affect the central nervous system or lead to impaired cognition disable men more, whereas a sedentary lifestyle, reduction in muscle strength and conditions that affect the osteoarticular system disable women more.

Prevalence of anemia and associated factors in older adults: evidence from the SABE Study

OBJECTIVE To assess the prevalence of anemia and associated factors in older adults. METHODS The prevalence and factors associated with anemia in older adults were studied on the basis of the results of the Saúde, Bem-Estar e Envelhecimento (SABE – Health, Welfare and Aging) study. A group of 1,256 individuals were interviewed during the third wave of the SABE study performed in Sao Paulo, SP, in 2010. The study included 60.4% females; the mean age of the participants was 70.4 years, and their average education was 5.3 years. The dependent variable was the presence of anemia (hemoglobin levels: 12 g/dL in women and 13 g/dL in men). Descriptive analysis and hierarchical logistic regression were performed. The independent variables were as follows: a) demographics: gender, age, and education and b) clinical characteristics: self-reported chronic diseases, presence of cognitive decline and depression symptoms, and body mass index. RESULTS The prevalence of anemia was 7.7% and was found to be higher in oldest adults. There was no difference between genders, although the hemoglobin distribution curve in women showed a displacement toward lower values in comparison with the distribution curve in men. Advanced age (OR = 1.07; 95%CI 0.57;1.64; p < 0.001), presence of diabetes (OR = 2.30; 95%CI 1.33;4.00; p = 0.003), cancer (OR = 2.72; 95%CI 1.2;6.11; p = 0.016), and presence of depression symptoms (OR = 1.75; 95%CI 1.06;2.88; p = 0.028) remained significant even after multiple analyses. CONCLUSIONS The prevalence of anemia in older adults was 7.7% and was mainly associated with advanced age and presence of chronic diseases. Thus, anemia can be an important marker in the investigation of health in older adults because it can be easily diagnosed and markedly affects the quality of life of older adults.

Uso de medicamentos potencialmente inapropriados por idosos do Município de São Paulo, Brasil: Estudo SABE

Various medicines are considered unsuitable for older adults due to alterations in pharmacokinetics/pharmacodynamics, lack of therapeutic efficacy, and/or increased risk of adverse events exceeding potential benefits. The aim of this study was to determine the prevalence of potentially inappropriate medication among older adults in the city of São Paulo, Brazil. A population-based cross-sectional study was conducted in a sample of 1,254 individuals aged 60 years or older (participants in the SABE Study), representing the elderly population of the city in 2006. Potentially inappropriate medication was defined according to the Beers criteria. Prevalence of potentially inappropriate medication was 28%. Potentially inappropriate medication was associated with polypharmacy (p=0.001), two or more diseases (p=0.011), and female gender (p=0.007). Thirty-six potentially inappropriate medicines were identified, the majority of which involving prescription medications. Specific criteria are needed for the Brazilian population, in addition to awareness-raising on clinical pharmacology in older adults. Prescription protocols and software programs could assist in the process of rational prescribing in this age group.Alguns medicamentos sao considerados improprios para o idoso, devido a alteracoes na farmacocinetica e farmacodinâmica, por falta de eficacia terapeutica ou por um risco aumentado de efeitos adversos superando seus beneficios. Verificou-se a prevalencia do uso de medicamentos potencialmente inapropriados, segundo os criterios de Beers, por idosos do Municipio de Sao Paulo, Brasil, participantes do Estudo SABE. Trata-se de um estudo transversal, de base populacional, cuja amostra de 1.254 individuos com 60 anos ou mais representava a populacao idosa do municipio no ano de 2006. Verificou-se a prevalencia de 28% de uso de medicamentos potencialmente inapropriados. No modelo de regressao logistica multipla, as variaveis associadas ao uso foram uso de cinco medicamentos ou mais (p = 0,001), presenca de duas ou mais doencas (p = 0,011) e sexo feminino (p = 0,007). Identificou-se o uso de 36 medicamentos potencialmente inapropriados, a maioria de venda sob prescricao. Sao necessarios criterios especificos para a populacao brasileira e ampla divulgacao da farmacologia clinica do idoso. Protocolos ou softwares para prescricao tambem podem auxiliar a prescricao racional para esse grupo.

Similarities Among Factors Associated With Components of Frailty in Elderly SABE Study

Objective: To analyze similarities among factors associated with the components of frailty in elderly. Method: We studied 1,413 elderly from the second wave of the SABE Study in 2006. Each of the five components of the frailty phenotype was considered a dependent variable in the hierarchical logistic regression models. Results: In both genders, age, schooling, sedentary lifestyle, and screening positive for depression were associated similarly with more than one component of frailty. Other similarities were also observed with stroke and screening positive for cognitive decline in men, and number of diseases and gait speed in women. The most similar associations happened between weakness and slowness; weakness, slowness, and LPAL; or weakness, slowness, and exhaustion. Discussion: Encouraging physical activity, screening for and treating depression and treating both diseases of the central nervous system and chronic diseases must be the focus of strategies to avoid, delay, or even remedy frailty.

Weight Gain Among Elderly Women as Risk Factor for Disability Health, Well-Being and Aging Study (SABE Study)

Objective: To examine the association between weight change and the incidence of disability in activities of daily living (ADL) among elderly women. Method: In 2006, 227 women aged ≥75 years and independent in ADL were selected from SABE Study (Health, Well-being, and Aging) in Sao Paulo, Brazil. The dependent variable was the report of difficulty on ≥1 ADL in 2009. Differences in weight were calculated between baseline and second interview, and converted to percentage change in relation to initial weight. A change (gain or loss) ≥5% was considered significant. A logistic regression analysis was performed including sociodemographic and health-related variables. Results: After adjusting, weight gain remained associated to disability (OR = 2.42; p = .027), whereas weigh loss lost significance (OR = 1.66; p = .384). Discussion: Weight loss is generally considered more worrisome than weight gain in elderly. However, weight loss alone was not a risk factor for disability in our study.

The relationship between anemia, hemoglobin concentration and frailty in Brazilian older adults

Objectiveto explore the relationship between anemia, hemoglobin concentration and frailty syndrome in older adults.Research Methods and ProceduresThis was a cross-sectional population-based study, with adults ≥60 years (n=1,256) from the third wave of the SABE Cohort Study (Health, Well-being and Aging) conducted in 2010 in São Paulo, Brazil. Frailty syndrome was evaluated according to Fried´s phenotype. Anemia was defined using the WHO criteria (hemoglobin concentration <12 g/dL for women and <13 g/dL for men). Four approaches were used to verify the associations between anemia, hemoglobin concentration and frailty status or number of frailty criteria. We used logistic regression and Poisson regression in the analyses, and they were adjusted in three hierarchical models using three blocks of variables: basic characteristics; clinical characteristics; cognitive status.ResultsMean hemoglobin concentration was significantly lower in frail elderly (13.3g/dL, versus 14.3g/dL in non-frail; p<0.001). Prevalence of anemia was also significantly higher in frail when compared to non-frail elderly (24.2% and 3.8%; p<0.001). Anemia was significantly associated to low physical activity, weakness and slowness. In the fully adjusted regression models, anemia was strongly associated to frailty (OR=3.27, 95%IC=1.89,5.65; p<0.001), and lower levels of hemoglobin were associated to higher number of frailty criteria.ConclusionsWe found important associations between anemia, hemoglobin concentration and frailty; anemic older adults were more likely to be frail, and lower levels of hemoglobin were associated to higher number of frailty criteria showing a clear dose-response effect..

THE ASSOCIATION OF HEMOGLOBIN CONCENTRATION WITH DISABILITY AND DECREASED MOBILITY AMONG OLDER BRAZILIANS

ObjectiveTo examine the association between hemoglobin concentration and disability and mobility difficulty among older adults living in São Paulo, Brazil.DesignCross-sectional study.SettingPopulation-based study conducted in São Paulo, Brazil.ParticipantsAdults age 60 and over (n=1,256) from the third data collection wave of the SABE Study (Health, Well-being, and Aging) conducted in 2010.MeasurementsTwo outcome measures were included in the analyses: 1) a difficulty to perform at least one of the instrumental activities of daily living (IADL) and 2) mobility difficulty, which was assessed using the Short Physical Performance Battery (SPPB). Logistic regression models assessed the association between hemoglobin and each of the outcome measures. All analyses were adjusted for sociodemographic and health characteristics.ResultsThe prevalence of IADL disability was 26.8% and 10.7% of participants had mobility difficulty. The mean hemoglobin concentration was significantly lower in older adults who already presented disability (13.7g/dL versus 14.4g/dL among independent elderly) or decreased mobility (13.4g/dL versus 14.3g/dL among elderly with preserved mobility). Higher values of hemoglobin concentration were associated with lower the risk of IADL disability (OR=0.88; p=0.04) and mobility difficulty (OR=0.81; p=0.02). Hemoglobin concentrations showed a dose-response effect in the probability of each outcome.ConclusionsLower hemoglobin concentration was associated with a higher probability of IADL disability and mobility difficulty, showing a clear dose-response effect.

Nutritional status and risk for disability in instrumental activities of daily living in older Brazilians.

OBJECTIVE The aim of the present study was to examine the association between nutritional status and the incidence of disability regarding instrumental activities of daily living (IADL) among older adults. DESIGN The study is part of the longitudinal SABE (Saúde, Bem-Estar e Envelhecimento; Health, Wellbeing and Ageing) Study that began in 2000 (first wave) with a multistage, clustered, probabilistic sample (n 2143) of older adults (≥60 years). The second wave was carried out in 2006, when 1115 elders were re-interviewed. The dependent variable was the occurrence of disability in 2006 (report of difficulty on ≥1 IADL). Nutritional status (measured at baseline) was classified on the basis of BMI: ≤23·0 kg/m2 (underweight); >23·0 and <28·0 kg/m2 (ideal range - reference); ≥28·0 and <30·0 kg/m2 (overweight); and ≥30·0 kg/m2 (obesity). SETTING São Paulo, Brazil. SUBJECTS One thousand and thirty-four individuals without difficulties regarding IADL in 2000 were selected, 611 of whom were re-interviewed in 2006. RESULTS In the multiple logistic regression analysis adjusted for baseline variables (gender, age, number of chronic diseases, stroke, osteoarthritis and cognitive status), underweight (OR = 2·03; P = 0·034) and obesity (OR = 1·79; P = 0·022) remained associated with disability. CONCLUSIONS Both underweight and obesity are associated with an increased risk of developing disability regarding IADL among older adults, in an independent fashion of other risk factors. Thus, adequate nutritional status is a key point to consider in the establishment of preventive measures.

Low supply of social support as risk factor for mortality in the older adults

OBJECTIVES To determine the relationship between social support and mortality in older adults, independent of other health conditions. METHOD This was a longitudinal study using the database of the 2006 SABE Study (Heath, Well-being and Aging), composed of 1413 individuals aged 60 years and over, living in São Paulo/Brazil. The present study used a questionnaire constructed for the SABE Study, which was reviewed by experts of Latin America and the Caribbean. The social network was evaluated using the variables: social support received; social support offered; number of members in the social network. The covariates included were age, gender, living arrangements, marital status, income, education, comorbidity, depressive symptoms, cognition and functional difficulties. Death as an outcome was evaluated after four years of follow-up. RESULTS From a total of 1413 older adults at baseline, 268 died in a mean follow-up period of 3,9 years (SE=0,03). In the model adjusted offering social support and having networks composed of 9 or more members reduced the risk of death in the older adults. CONCLUSIONS This study suggest that older adult who are offered support can benefit from mutual exchanges since reciprocity in relationships improves psychological well-being and is indicative of the quality of relationships. Thus, the older adults are part of a group of people whose role is not only to receive, but also to provide help to others, and the support offered seems to be as important as that received.

Life expectancy with and without cognitive impairment among Brazilian older adults

Estimating the life expectancy with and without cognitive impairment in an older adult population is critical for understanding the burden of illness on individuals and their families, the health care system, and society at large. This paper presents and compares estimates of life expectancy with and without cognitive impairment for the noninstitutionalized population ages 60 years and older in São Paulo, Brazil, for the years 2000 and 2010. Life expectancy with and without cognitive impairment was calculated using the Sullivan method and prevalence estimates from data collection at two points (2000 and 2010) of the Health, Well-Being, and Aging (SABE) Study. Results indicate that 60-year-old men in São Paulo in 2000 could expect to live 14.8 years and women 17.9 years without cognitive impairment. By 2010, life expectancy without cognitive impairment had increased to 17.1 years for men and 20.0 years for women. Length of life with cognitive impairment differed by gender (2.3 years for men and 3.7 years for women at age 60 in 2010). However, the absolute number of years with cognitive impairment remained relatively constant with age. The results indicate a trend for improvements in life expectancy without cognitive impairment over time in São Paulo. Adults in Brazil still face many years of cognitive impairment in their older years, particularly when compared with estimates from developed countries.