[Health behaviors and preventive tests in adults with and without health insurance in Greater Metropolitan Belo Horizonte, Minas Gerais State, Brazil, 2003-2010]

This study analyzed indicators for health behaviors and use of preventive services in two probabilistic samples of adults, one in 2003 (n = 13,757) and the other in 2010 (n = 12,983), with and without private health insurance in Greater Metropolitan Belo Horizonte, Minas Gerais State, Brazil. After adjusting for demographic variables, temporal variation, and source of care, there was a reduction in smoking prevalence, similar between individuals with and without private health insurance, from 2003 to 2010. During this same period the prevalence of excessive alcohol intake and sedentary lifestyle increased in both groups; with the same magnitude, there was a decrease in the prevalence of leisure-time physical activity. No changes were observed in the prevalence of blood pressure measurement, but the prevalence of cholesterol testing, mammogram, and Pap smear increased more sharply in individuals without health insurance.

Uso de psicofármacos entre idosos residentes em comunidade: prevalência e fatores associados

RESUMO: Objetivo: Investigar a prevalência e os fatores associados ao uso de psicofármacos entre idosos. Métodos: O estudo, realizado em 2003, baseou-se no Inquérito de Saúde da Região Metropolitana de Belo Horizonte (RMBH). Participaram do estudo 1.635 idosos (60 anos ou mais) residentes nos municípios da RMBH, selecionados por meio de amostra probabilística complexa. Modelos de regressão logística foram utilizados para identificar os fatores associados ao uso de psicofármacos, considerando o nível de significância de 5,0%. Resultados: A prevalência de uso de psicofármacos foi de 13,4%, sendo 8,3% para uso de benzodiazepínicos e 5,0% para antidepressivos. Os fatores independentemente associados ao uso de psicofármacos foram sexo feminino (OR = 2,20; IC95% 1,49 - 3,27), relato de diagnóstico médico para depressão (OR = 6,42; IC95% 4,31 - 9,55), ter realizado 5 ou mais consultas médicas nos últimos 12 meses (OR = 2,15; IC95% 1,32 - 3,53) e afiliação a plano de privado saúde (OR = 2,69; IC95% 1,86 - 3,88). Conclusão: A prevalência observada foi semelhante ao verificado entre idosos brasileiros e o padrão de associações detectado foi consistente com o observado em populações idosas de países de maior renda, sendo o relato de diagnóstico médico para depressão o fator mais fortemente associado ao uso de psicofármacos.

The Effects of Weight and Waist Change on the Risk of Long-Term Mortality in Older Adults- The Bambuí (Brazil) Cohort Study of Aging

OBJECTIVE

We aimed to investigate the risk of long-term mortality associated with weight and waist circumference (WC) change among older adults, particularly the overweight and obese ones.

DESIGN

Cohort Study.

SETTING

The Bambuí (Brazil) Cohort Study of Aging.

PARTICIPANTS

Community-dwelling elderly (n=1138).

MEASUREMENTS

Weight and WC were reassessed three years after baseline. Mortality risk associated with a 5% weight/WC loss and gain was compared to that of weight/WC stability by Cox models adjusted for clinical, behavioral and social known risk factors for death (age, gender, BMI, smoking, diabetes, total cholesterol, hypertension, Chagas disease, major electrocardiographic changes, physical activity, B-type natriuretic peptide, C-reactive protein, creatinine, education and household income).

RESULTS

Female sex was predominant (718; 63.1%). Mean age was 68 (6.7) years. Weight stability (696; 61.1%) was more common than weight loss (251; 22.1%) or gain (191; 16.8%). WC remained stable in 422 (37.3%), decreased in 418 (37.0%) and increased in 291 (25.7%) participants. There were 334 (29.3%) deaths over a median follow-up time of 8.0 (6.4-8.0) years from weight/WC reassessment. Weight loss (HR 1.69; 95% CI 1.30-2.21) and gain (HR 1.37; 95% CI 1.01-1.85) were associated with increased mortality, except in those who were physically active in which weight gain was associated with decreased mortality. Results were similar for participants who were overweight/obese or with abdominal obesity at baseline (HR 1.41; 95%CI 1.02-1.97 and HR 2.01; 95%CI 1.29-3.12, for weight loss and gain, respectively). WC change was not significantly associated with mortality.

CONCLUSION

Although weight loss has been recommended for adults with excessive weight regardless of age, weight change might be detrimental in older adults. Rather than weight loss, clinical interventions should target healthy lifestyle behaviors that contribute to weight stability, particularly physical activity in overweight and obese older adults.

Perceived neighborhood characteristics and the functional performance of elderly people in the Belo Horizonte Metropolitan Area, Minas Gerais State, Brazil: a quantile regression analysis

This study aims to examine the relationship between neighborhood characteristics and the functional performance of elderly people living in the Belo Horizonte metropolitan area, Minas Gerais State, Brazil. Data of a representative sample of 2,033 elderly were analyzed using quantile regression. Functional performance was measured by the number of activities of daily living (ADL) the elderly had difficulty to perform. The neighborhood characteristics evaluated were: maintenance, trust, insecurity and defective sidewalks. Functional performance was found positively associated with the characteristic defective sidewalks, whose effect increased as the number of ADL the elderly had difficulty to perform increased. The results suggest that inadequate sidewalk conditions can contribute to functional losses in elderly people, especially among those who are functionally more compromised.

Wealth and Disability in Later Life: The English Longitudinal Study of Ageing (ELSA)

We examined wealth inequalities in disability, taking into account the effect of both depression and social support among older English adults using data from 5,506 community-dwelling people aged 50 years and over from the English Longitudinal Study of Ageing (ELSA). Disability was measured as self-reported limitations in the Basic Activities of Daily Living (ADL) and Instrumental Activities of Daily Living (IADL). Depressive symptomatology was measured using the 8-item Center for Epidemiological Studies-Depression (CES-D) scale. Social support was assessed by marital status and frequency of contact with friends, relatives or children. Multinomial logistic regression models were used to assess the role of social support and depressive symptoms on disability by total household wealth, which is a measure of accumulated assets over the course of life. Our findings showed that the poorest men with disability were more likely to live without a partner and have no weekly contact with children, family or friends compared to the wealthiest. Among women with disability, the poorest were more likely to report loneliness and have no partner while the wealthiest and the intermediate groups were more likely to be living with a partner. There was a strong inverse dose-response association between wealth and depressive symptoms among all participants with disability. This study shows a clear wealth gradient in disability among older English adults, especially for those with elevated depressive symptoms.

[Use of health services by diabetics with private health insurance compared to users of the Brazilian Unified National Health System in Belo Horizonte, Minas Gerais State, Brazil]

This study compared the use of health services and medication, screening test coverage, characteristics of primary care, and health behaviors in 370 diabetics 45 years or older according to sources of care: private health policyholders regardless of place of residence; residents in areas covered by the Family Health Strategy; and individuals covered by a "traditional" Primary Care Unit. The study used data from the 2nd Adult Health Survey in Belo Horizonte Metropolitan Region (2010), Minas Gerais State, Brazil. Use of health services, use of medication, coverage of follow-up tests, alcohol abuse, and smoking did not differ significantly according to source of care. Prevalence rates for insufficient leisure-time physical exercise and sedentary lifestyle were higher among individuals covered by the Family Health Strategy or "traditional" Primary Care Unit. The primary care characteristics (access, comprehensiveness, continuity, and family focus) performed better among individuals with private health insurance, even after adjusting for age, sex, and schooling. The study identified two main challenges for the Brazilian Unified National Health System in managing patients with diabetes in the city of Belo Horizonte: the promotion of physical exercise and reorganization to improve performance in primary care, especially in access to medical appointments.

Components of the metabolic syndrome and depressive symptoms in community-dwelling older people: the Bambuí Cohort Aging Study

Objective:

To investigate the moderating effect of an increasing number of clustered metabolic syndrome (MetS) components on the association between MetS and depressive symptoms in a population-based cohort of older adults in Brazil.

Methods:

This analysis used data from the Bambuí Cohort Aging Study. Participants in this cross-sectional study comprised 1,469 community-dwelling older people aged ≥ 60 years. Analyses were performed to assess both the association between depressive symptoms and each individual MetS component and the association between depressive symptoms and clustering of an increasing number of MetS components.

Results:

High triglyceride level was the individual component that showed the strongest association with depressive symptoms (odds ratio [OR]: 1.47; 95% confidence intervals [95%CI] 1.19-1.81; p < 0.0001). Only the presence of three MetS components was associated with depressive symptoms (OR = 1.53; 95%CI 1.05-2.23; p = 0.025). No graded association was detected between increasing number of clustered MetS components and depressive symptoms.

Conclusions:

Increasing the number of MetS components did not impact the association with depressive symptoms. The association between high triglyceride level and depressive symptoms highlights the relevance of lipid metabolism abnormalities for the emergence of depressive symptoms in older adults.

Apolipoprotein E polymorphism and functional disability in Brazilian elders: the Bambuí Health and Aging Study

Numerous studies have associated the apolipoprotein E (apoE) ε4 allele with worse health status, but few have assessed the existence of genotype-dependent variations in functional performance. Among participants in the Bambuí Health and Aging Study, Minas Gerais State, Brazil, 1,408 elderly underwent apoE genotyping. Functionality was assessed with a questionnaire, and individuals were classified as dependent in basic activities of daily living (BADLs), instrumental activities of daily living (IADLs), and mobility. The association between apoE genotype and functional status was assessed by logistic regression, taking confounding factors into account. Presence of ε4 allele was associated with lower odds of mobility deficit (OR = 0.65; 95%CI: 0.47-0.92) in the adjusted analysis. There were no significant differences in relation to presence of dependency in BADLs and IADLs. The reasons are not entirely understood, but they may involve the role of ε4 allele as a "thrifty gene" in a sample exposed to high risk of infectious and nutritional diseases in the past.

[Physical activity and Framingham risk score in older adults: the Bambuí Health and Aging Study]

This study explored the association between energy expenditure during physical activity and the Framingham risk score in the elderly. This was a cross-sectional study with a sample of 1,473 older adults. The dependent variable was level of physical activity, estimated by the metabolic equivalents in tertiles. The exploratory variables were the components of the Framingham risk score and the Framingham risk score itself. The force of associations was estimated by odds ratios and confidence intervals using ordinal logistic regression. Higher physical activity was associated with lower Framingham risk score, younger age, lower proportion of diabetes, and higher mean HDL levels. Higher energy expenditure was also associated with lower odds of smoking in men. The findings suggest that the adoption of a physically active lifestyle can reduce coronary risk, and that the promotion of physical activity is a universal strategy to fight chronic noncommunicable diseases.

[Functional capacity in the elderly: analyzing questions on mobility and basic and instrumental activities of daily living using Item Response Theory]

This article aims to evaluate the items used to measure functional capacity in the 2010 Health Survey in Greater Metropolitan Belo Horizonte, Minas Gerais State, Brazil, using Item Response Theory. We analyzed the scale's dimensionality, the items' position and discriminatory power, and the precision of the functional capacity estimate. The study was based on a sample of 2,174 individuals aged 60 to 99 years, 61% of whom were women, with a median of 4 years of schooling. The instrument with 21 items (4 response options) showed a Cronbach's alpha coefficient of 0.98. Factor analysis identified one factor that explained 92% of the variability between the items. The results indicated: (i) redundancy in items; (ii) precise estimation of functional capacity only for elderly below the median on the scale; and (iii) inability of the elderly to differentiate between response options. The analysis suggests the need to discuss items included in the instrument in order to cover a wider range of the scale and seek more appropriate response options.

Mortality risk attributable to smoking, hypertension and diabetes among English and Brazilian older adults (The ELSA and Bambui cohort ageing studies)

BACKGROUND

The main aim of this study was to quantify and compare 6-year mortality risk attributable to smoking, hypertension and diabetes among English and Brazilian older adults. This study represents a rare opportunity to approach the subject in two different social and economic contexts.

METHODS

Data from the data from the English Longitudinal Study of Ageing (ELSA) and the Bambuí Cohort Study of Ageing (Brazil) were used. Deaths in both cohorts were identified through mortality registers. Risk factors considered in this study were baseline smoking, hypertension and diabetes mellitus. Both age-sex adjusted hazard ratios and population attributable risks (PAR) of all-cause mortality and their 95% confidence intervals for the association between risk factors and mortality were estimated using Cox proportional hazards models.

RESULTS

Participants were 3205 English and 1382 Brazilians aged 60 years and over. First, Brazilians showed much higher absolute risk of mortality than English and this finding was consistent in all age, independently of sex. Second, as a rule, hazard ratios for mortality to smoking, hypertension and diabetes showed more similarities than differences between these two populations. Third, there was strong difference among English and Brazilians on attributable deaths to hypertension.

CONCLUSIONS

The findings indicate that, despite of being in more recent transitions, the attributable deaths to one or more risk factors was twofold among Brazilians relative to the English. These findings call attention for the challenge imposed to health systems to prevent and treat non-communicable diseases, particularly in populations with low socioeconomic level.

A genome-wide association study of asthma symptoms in Latin American children

Background

Asthma is a chronic disease of the airways and, despite the advances in the knowledge of associated genetic regions in recent years, their mechanisms have yet to be explored. Several genome-wide association studies have been carried out in recent years, but none of these have involved Latin American populations with a high level of miscegenation, as is seen in the Brazilian population.

Methods

1246 children were recruited from a longitudinal cohort study in Salvador, Brazil. Asthma symptoms were identified in accordance with an International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. Following quality control, 1 877 526 autosomal SNPs were tested for association with childhood asthma symptoms by logistic regression using an additive genetic model. We complemented the analysis with an estimate of the phenotypic variance explained by common genetic variants. Replications were investigated in independent Mexican and US Latino samples.

Results

Two chromosomal regions reached genome-wide significance level for childhood asthma symptoms: the 14q11 region flanking the DAD1 and OXA1L genes (rs1999071, MAF 0.32, OR 1.78, 95 % CI 1.45–2.18, p-value 2.83 × 10⁻⁸) and 15q22 region flanking the FOXB1 gene (rs10519031, MAF 0.04, OR 3.0, 95 % CI 2.02–4.49, p-value 6.68 × 10⁻⁸ and rs8029377, MAF 0.03, OR 2.49, 95 % CI 1.76–3.53, p-value 2.45 × 10⁻⁷). eQTL analysis suggests that rs1999071 regulates the expression of OXA1L gene. However, the original findings were not replicated in the Mexican or US Latino samples.

Conclusions

We conclude that the 14q11 and 15q22 regions may be associated with asthma symptoms in childhood.

Electronic supplementary material

The online version of this article (doi:10.1186/s12863-015-0296-7) contains supplementary material, which is available to authorized users.

Predictors of incidence of clinically significant depressive symptoms in the elderly: 10-year follow-up study of the Bambui cohort study of aging

OBJECTIVE

We aim to evaluate the incidence rate and predictors of clinically significant depressive symptoms (CSDS) over 10 years of follow-up from a population-based cohort study (the Bambui Cohort Study of Aging).

METHODS

We calculated the predictors of incidence of CSDS over 10 years of follow-up by the Cox proportional regression analysis. Depressive symptoms were evaluated by GHQ-12 and scores of five or higher indicated CSDS.

RESULTS

The annualized incidence rate of clinically significant depressive symptoms was 46 per 1000 person-year. In the multivariate analysis, the main predictors of CSDS were cognitive impairment (HR = 1,69 CI95% [1,20 - 2.37], p = 0.002), diabetes (HR = 1.59 CI95% [1.14 - 2.20], p = 0.006), use of 2 to 4 (HR = 1,95 CI95% [1.21 - 3.15], p = 0.006) and of 5 or more medications in the last 90 days (HR = 2.19 CI95% [1.31 - 3.66], p = 0.003) and higher baseline depressive symptoms (HR = 2.12 CI95% [1.61 - 2.78], p < 0.001).

CONCLUSION

These results highlight the importance of higher depressive symptoms, cognitive impairment and endocrine-metabolic disorders to the development of depressive symptoms in older adults. These findings provide a framework for the development of interventions to prevent the emergence of clinically significant depressive symptoms in the elderly.

Influência de fatores estruturais e organizacionais no desempenho da atenção primária à saúde em Belo Horizonte, Minas Gerais, Brasil, na avaliação de gestores e enfermeiros

O objetivo do trabalho foi avaliar o desempenho da atenção primária à saúde (APS) em Belo Horizonte, Minas Gerais, Brasil, utilizando o questionário PCATool entre enfermeiros das equipes de saúde da família e gerentes. O escore total da APS foi 0,75 (bom); o primeiro contato (0,95), a longitudinalidade (0,83), a integralidade (0,83) e a coordenação (0,78) apresentaram melhor desempenho. O enfoque familiar, a orientação comunitária e o acesso receberam as piores pontuações (0,68, 0,56 e 0,45). Os fatores associados (p < 0,05) à melhor performance da APS foram: disponibilidade de equipamentos e outros insumos (RP ajustada = 1,57), formação dos profissionais em saúde da família (RP = 1,44), presença do médico por mais de 30 horas semanais (RP = 1,42) e quatro ou mais equipes por unidade básica de saúde (RP = 1,09). Os resultados revelaram a importância de fatores estruturais (sistemas logísticos adequados, formação da equipe em saúde da família) e organizacionais (médico em tempo integral, número de equipes da Estratégia Saúde da Família por unidades básicas de saúde) na performance da APS e na melhoria da qualidade.

Aspectos sociodemográficos e de saúde associados ao trabalho remunerado em adultos (50-69 anos) na Região Metropolitana de Belo Horizonte, Minas Gerais, Brasil

Foram examinados os fatores associados ao trabalho remunerado em uma amostra probabilística de 3.320 indivíduos (50-69 anos de idade), residentes na Região Metropolitana de Belo Horizonte, Minas Gerais, Brasil. A prevalência do trabalho remunerado foi de 62,8% entre homens e 35,8% entre mulheres. Em ambos os gêneros, o trabalho remunerado apresentou associação positiva com o nível de escolaridade e negativa com a autoavaliação da saúde. A propensão de ter trabalho remunerado foi maior entre mulheres sem cônjuge e aquelas que conheciam alguém que havia sido discriminado no ambiente de trabalho. Entre os homens, a prevalência do trabalho remunerado caiu de 67,2%, entre aqueles com ≥ 8 anos de escolaridade e que avaliaram melhor a sua saúde, para 37,8% entre aqueles com escolaridade mais baixa e que avaliaram a sua saúde como ruim (RP = 0,56; IC95%: 0,37-0,87). Entre as mulheres, a prevalência correspondente caiu de 42,1% para 3,6% (RP = 0,09; IC95%: 0,03-0,26). A propensão de ter trabalho remunerado entre mulheres com baixa escolaridade e pior avaliação da saúde foi dez vezes menor do que entre seus equivalentes homens.

Social Inequalities on Selected Determinants of Active Aging and Health Status Indicators in a Large Brazilian City (2003-2010)

Objective: To assess trends in social inequalities among 2,624 elderly living in Belo Horizonte, Brazil, in three domains of the World Health Organization’s Active Aging model (physical environment, social determinants, use of health services) and health status indicators. Method: Data came from two representative household surveys conducted in 2003 and 2010. Social inequality was measured by the slope and the relative index of inequality. Educational level was used to define socioeconomic status. Results: Significant improvements were observed in the prevalence rates of 7 out of 12 indicators. However, the social inequalities persisted through 10 out of 12 selected active aging and health status indicators, except for fear of falling on the sidewalks/crossing the streets and fear of being robbed. Discussion: Social inequalities persistence might be assigned to the continuity of unequal distribution of resources among groups with different educational levels.

APOE ε4 allele is associated with worse performance in memory dimensions of the mini-mental state examination: the Bambuí Cohort Study of Aging

OBJECTIVE

This study aimed to investigate the correlation between apolipoprotein E (APOE) ε4 and the mini-mental state examination (MMSE) dimension in an elderly population, using baseline data from the Bambui (Brazil) Cohort Study of Aging.

DESIGN

We conducted a community-based cross-sectional study.

SETTING

The study took place at Bambui city, Minas Gerais State, Southeast Brazil.

PARTICIPANTS

A total of 1408 (87.7%) cohort participants had complete information on the MMSE and health measures.

MEASUREMENTS

The association between each of five dimensions (concentration, language/praxis, orientation, attention, and memory) underlying the MMSE and APOE ε4 allele was assessed using multivariate linear regression models. Potential confounding variables included sociodemographic factors and selected biomarkers.

RESULTS

The main finding is a strong negative association between the presence of APOE ε4 allele and memory dimension in the MMSE (fully adjusted β coefficient = -0.14; 95% confidence interval: -0.27 to -0.04; p = 0.016). No other cognitive dimensions showed significant associations with the APOE ε4 allele.

CONCLUSION

This study is the first to investigate the association between dimensions of the MMSE, obtained from principal component analysis and APOE ε4 carrier status in community-dwelling older adults taking into account a range of potential confounding factors. We found a strong negative association between the presence of APOE ε4 allele and scores on memory dimension of the MMSE, but no effect on other dimensions. Our results reinforce previous data on the literature that APOE ε4 allele has a significant effect on cognitive performance that can be detected even in screening tests, such as the MMSE.

Physical activity and all-cause mortality among older Brazilian adults: 11-year follow-up of the Bambuí Health and Aging Study

Objective

To investigate the association between physical activity (eg, energy expenditure) and survival over 11 years of follow-up in a large representative community sample of older Brazilian adults with a low level of education. Furthermore, we assessed sex as a potential effect modifier of this association.

Materials and methods

A population-based prospective cohort study was conducted on all the ≥60-year-old residents in Bambuí city (Brazil). A total of 1,606 subjects (92.2% of the population) enrolled, and 1,378 (85.8%) were included in this study. Type, frequency, and duration of physical activity were assessed in the baseline survey questionnaire, and the metabolic equivalent task tertiles were estimated. The follow-up time was 11 years (1997–2007), and the end point was mortality. Deaths were reported by next of kin during the annual follow-up interview and ascertained through the Brazilian System of Information on Mortality, Brazilian Ministry of Health. Hazard ratios (95% confidence intervals [CIs]) were estimated by Cox proportional-hazard models, and potential confounders were considered.

Results

A statistically significant interaction (P<0.03) was found between sex and energy expenditure. Among older men, increases in levels of physical activity were associated with reduced mortality risk. The hazard ratios were 0.59 (95% CI 0.43–0.81) and 0.47 (95% CI 0.34–0.66) for the second and third tertiles, respectively. Among older women, there was no significant association between physical activity and mortality.

Conclusion

It was possible to observe the effect of physical activity in reducing mortality risk, and there was a significant interaction between sex and energy expenditure, which should be considered in the analysis of this association in different populations.

Construct validity of the mini mental state examination across time in a sample with low-education levels: 10-year follow-up of the Bambuí Cohort Study of Ageing

OBJECTIVE

The study aims to investigate whether longitudinal data on the structure of the mini mental state examination (MMSE) collected in an older Brazilian cohort support factorial invariance over time.

DESIGN

Analysis of 10-year data from a community-based cohort study was performed.

SETTING

The study took place in Bambuí, Brazil.

PARTICIPANTS

The study sample comprised 1558 (89.4%) of all eligible 1742 elderly residents.

MEASUREMENTS

A standard Brazilian version of the MMSE was used.

RESULTS

A five-factor solution (developed on the baseline of the cohort) either with no constraints or with loadings constrained to equality across time provided a reasonable fit for the MMSE. A comparison between both models suggested that the model with no constraints was superior. However, the five absolute goodness-of-fit indices suggest that the fully constrained model was also adequate and did not differ substantively from the model without any restriction.

CONCLUSION

The structure of the MMSE remained relatively unchanged across the 10 measurement times, thus providing evidence for the good construct validity of the scale across time.

Satisfaction with physical and social surroundings and the habit of smoking cigarettes in the metropolitan area of Belo Horizonte, Brazil

The objective of this study was to examine the association between individual satisfaction with social and physical surroundings and the habit of smoking cigarettes. Data from the Health Survey of Adults from the metropolitan area of Belo Horizonte, Minas Gerais, Brazil, were used. Based on a probability sample, participants (n = 12,299) were selected among residents aged 20 years old or more. The response variable was the smoking habit and the explanatory variable of interest was the neighborhood perception. Potential confounding variables included demographic characteristics, health behaviors and other indicators of socioeconomic position. The prevalence of current smokers, former smokers and never smokers were 20.8, 14.1 and 65.1%, respectively; 74.4 and 25.5% of the participants were categorized as being more satisfied and less satisfied with the neighborhood, respectively. Compared to those who never smoked, former smokers (adjusted odds ratio = 1.40, 95% confidence interval 1.20 - 1.62) and current smokers (adjusted odds ratio = 1.17, 95% confidence interval 1.03 - 1.34) were less satisfied with the neighborhood compared to those who never smoked. The results of this study indicate there is an independent association between the smoking habit and a less satisfying neighborhood perception in the metropolitan region of Belo Horizonte, which does not depend on individual characteristics, traditionally reported as being associated with smoking.

[Disability and use of health services by the elderly in Greater Metropolitan Belo Horizonte, Minas Gerais State, Brazil: a population-based study]

This study focused on the association between disability and use of health services among elderly individuals in Greater Metropolitan Belo Horizonte, Minas Gerais State, Brazil. The study included 1,624 elderly patients (≥ 60 years) selected by representative sampling. The dependent variable was use of health services, based on three descriptors: number of physician visits, home consultations, and hospitalizations. The target independent variable was disability, including difficulty in performing activities of daily living (ADL) and instrumental activities of daily living (IADL). IADL was only associated with hospitalization (PR = 1.62; 95%CI: 1.16-2.26), while ADL was associated with hospitalization (PR = 1.73; 95%CI: 1.24-2.42) and home consultations (PR = 8.54; 95%CI: 4.22-17.27). The findings show increased use of health services (especially more costly ones) among older adults with disabilities, and that functional health dimensions have not oriented health services, still largely conditioned on the presence of diseases.

The effect of gender, age, and symptom severity in late-life depression on the risk of all-cause mortality: the Bambuí Cohort Study of Aging

BACKGROUND

Increased mortality risk and its moderators is an important, but still under recognized, negative outcome of late-life depression (LLD). Therefore, we aimed to evaluate whether LLD is a risk factor for all-cause mortality in a population-based study with over 10 years of follow-up, and addressed the moderating effect of gender and symptom severity on mortality risk.

METHODS

This analysis used data from the Bambuí Cohort Study of Aging. The study population comprised 1.508 (86.5%) of all eligible 1.742 elderly residents. Depressive symptoms were annually evaluated by the GHQ-12, with scores of five or higher indicating clinically significant depression. From 1997 to 2007, 441 participants died during 10,648 person-years of follow-up. We estimated the hazard ratio for mortality risk by Cox regression analyses.

RESULTS

Depressive symptoms were a risk factor for all-cause mortality after adjusting for confounding lifestyle and clinical factors (adjusted HR = 1.24 CI95% [1.00-1.55], P = .05). Mortality risk was significantly elevated in men (adjusted HR = 1.45 CI95% [1.01-2.07], P = 0.04), but not in women (adjusted HR = 1.13 CI95% [0.84-1.48], P = 0.15). We observed a significant interaction between gender and depressive symptoms on mortality risk ((HR = 1.72 CI95% [1.18-2.49], P = 0.004).

CONCLUSION

The present study provides evidence that LLD is a risk factor for all-cause mortality in the elderly, especially in men. The prevention and adequate treatment of LLD may help to reduce premature disability and death among elders with depressive symptoms.