Factors associated with depressive symptoms measured by the 12-item General Health Questionnaire in community-dwelling older adults (The Bambuí Health Aging Study)

The association of social networks and depression in community-dwelling older adults: a systematic review

BACKGROUND AND OBJECTIVE

Depression is a globally prevalent mental condition, particularly among older adults. Previous research has identified that social networks have a buffering effect on depression. Existing systematic reviews have either limited their research to specific geographic areas or provided evidence from over a decade ago. The vast body of recent literature particularly from the last decade emphasizes the need for a comprehensive review. This systematic review aims to analyze the association of structural aspects of social networks and depression in older adults.

METHODS

The electronic databases APA PsycINFO, ProQuest, PSYINDEX, PubMed, Scopus, SocINDEX, and Web of Science were searched from date of data base inception until 11 July 2023. Studies were eligible for inclusion if they reported on community-dwelling older adults (defined as a mean age of at least 60 years old), had an acceptable definition for depression, referred to the term social network in the abstract, and were published in English. Quality was appraised using the Newcastle Ottawa Scale for cross-sectional and longitudinal studies. Outcome data were extracted independently from each study and analyzed by direction of the relationship, social network domain and cross-sectional or longitudinal study design.

RESULTS

In total, 127 studies were included. The study categorizes structural network aspects into seven domains and finds that larger and more diverse networks, along with closer social ties, help mitigate depression. The literature on the relationships between depression and network density, homogeneity, and geographical proximity is scarce and inconclusive. DISCUSSION AND IMPLICATIONS: Despite inconsistent findings, this review highlights the importance of quantifying complex social relations of older adults. Limitations of this review include publication and language bias as well as the exclusion of qualitative research. Further research should use longitudinal approaches to further investigate the reciprocal relationship between social networks and depression. Following this review, interventions should promote the integration of older adults in larger and more diverse social settings. Other: This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Grant [454899704]. This systematic review was pre-registered. The review-protocol can be accessed at https://doi.org/10.17605/OSF.IO/6QDPK .

Prevalência de depressão e fatores associados em idosos atendidos na Atenção Primária à Saúde em região metropolitana do Distrito Federal

Objetivo: verificar a prevalência de depressão e as variáveis sociodemográficas e clínicas associadas a esse transtorno nos idosos atendidos na Atenção Primária à Saúde (APS) em região metropolitana do Distrito Federal.Métodos: estudo transversal realizado entre janeiro e agosto de 2018, com idosos atendidos na Unidade Básica de Saúde da Granja do Torto, em Brasília, DF. Foi aplicado instrumento versando sobre variáveis sociodemográficas, comportamentais e clínicas. Para a avaliação dos sintomas depressivos, foi utilizada a Escala de Depressão Geriátrica, versão reduzida (EDG-15). Na análise dos dados, foi realizada a estatística descritiva e a aplicação do teste qui-quadrado para associação das variáveis categóricas, com nível de significância de 5% (p≤ 0,05).Resultados: a amostra constituiu-se de 70 idosos. Foi encontrada prevalência de 41,4% de sintomas depressivos nos idosos estudados, 35,7% com indicativo de depressão leve e 5,7% de depressão grave. No grupo com sintomas depressivos, houve predomínio do sexo feminino, idade entre 70 a 79 anos, casados, católicos, analfabetos, aposentados, de baixa renda e com duas ou mais pessoas com grau de parentesco vivendo na mesma residência. Foi identificado, no grupo com depressão, associação significativa com escolaridade (p=0,05), nível de instrução (p=0,04), renda mensal (p=0,006), condições clínicas como osteoporose (p=0,02) e artrite/artrose (p=0,03), quedas (p=0,03) e uso de antidepressivos (p=0,02), sendo, nessa classe, escitalopram o mais utilizado (p=0,004).Conclusão: foi evidenciada alta prevalência de depressão entre os idosos da APS da região metropolitana do Distrito Federal do sexo feminino com idades entre 70 e 79 anos. Variáveis como escolaridade, nível de instrução, renda mensal, osteoporose, artrite/artrose, quedas e uso de antidepressivos apresentaram diferenças estatisticamente significativas naqueles com depressão. Assim, é fundamental o rastreio precoce dos sintomas depressivos, mais precisão no diagnóstico e no tratamento desse transtorno, com intervenções não farmacológicas e farmacológicas, executadas por equipe multidisciplinar especializada, capacitada para assistir aos idosos da rede de APS, evitando os efeitos deletérios na qualidade de vida dos indivíduos desse grupo.

Sex differences in adult mood and in stress-induced transcriptional coherence across mesocorticolimbic circuitry

Women are approximately two times as likely to be diagnosed with major depressive disorder (MDD) compared to men. While sex differences in MDD might be driven by circulating gonadal hormones, we hypothesized that developmental hormone exposure and/or genetic sex might play a role. Mice were gonadectomized in adulthood to isolate the role of developmental hormones. We examined the effects of developmental gonadal and genetic sex on anhedonia-/depressive-like behaviors under non-stress and chronic stress conditions and performed RNA-sequencing in three mood-relevant brain regions. We used an integrative network approach to identify transcriptional modules and stress-specific hub genes regulating stress susceptibility, with a focus on whether these differed by sex. After identifying sex differences in anhedonia-/depressive-like behaviors (female > male), we show that both developmental hormone exposure (gonadal female > gonadal male) and genetic sex (XX > XY) contribute to the sex difference. The top biological pathways represented by differentially expressed genes were related to immune function; we identify which differentially expressed genes are driven by developmental gonadal or genetic sex. There was very little overlap in genes affected by chronic stress in males and females. We also identified highly co-expressed gene modules affected by stress, some of which were affected in opposite directions in males and females. Since all mice had equivalent hormone exposure in adulthood, these results suggest that sex differences in gonadal hormone exposure during sensitive developmental periods program adult sex differences in mood, and that these sex differences are independent of adult circulating gonadal hormones.

Inflammatory markers associated with fall recurrence and severity: The Bambuí Cohort Study of Aging

BACKGROUND

The aim of this study was to analyze the association between inflammatory markers and recurrent and severe falls in 1304 community-dwelling older adults from the Bambuí Cohort Study of Aging.

METHODS

Information about falls in the previous 12 months was collected, and classified based on recurrence (two or more falls) and severity (requirement of medical attention). The screened biomarkers included interleukins (IL-1β, IL-6, IL-10, and IL-12, TNF), chemokines (CXCL8, CXCL9, CXCL10, CCL2, and CCL5), and high-sensitive C-reactive protein (hs-PCR). Potential confounders included sociodemographic, behavioral, and health indicators. Associations were evaluated through logistic regression, using odds ratios (OR) and 95% confidence intervals (95% CI), with Stata 13.1.

RESULTS

The prevalence of recurrent and severe falls was 10.7% and 9.0%, respectively. After adjustments, elevated levels of IL-12 (OR: 1.92; 95% CI: 1.09-3.37) and CXCL9 (OR: 1.67; 95% CI: 1.05-2.66) were found to be associated with recurrent falls, while elevated levels of TNF (OR: 1.58; 95% CI: 1.01-2.50), IL-12 (OR: 2.04; 95% CI: 1.13-3.70), CXCL10 (OR: 1.75; 95% CI: 1.04-2.92), and CCL5 (OR: 1.90; 95% CI: 1.18-3.07) were associated with severe falls.

CONCLUSIONS

The results highlight a wide range of biomarkers not yet explored in the literature and suggest that inflammation may be an important component of recurrent and severe falls.

The prospective association between frequency of contact with friends and relatives and quality of life in older adults from Central and Eastern Europe

PURPOSE

Studies suggest that frequent contact with friends and relatives promote mental wellbeing in later life, but most evidence comes from Western populations. We investigated the prospective relationship between frequency of contact with friends and relatives and quality of life (QoL) among older Central and Eastern European (CEE) adults and whether depressive symptoms mediated the hypothesised longitudinal relationship.

METHODS

Data from 6106 participants from the Health, Alcohol and Psychosocial factors In Eastern Europe (HAPIEE) study were used. Frequency of contact with friends and relatives was measured at baseline. QoL, at baseline and follow-up, was measured by the Control, Autonomy, Self-realisation, and Pleasure (CASP) 12-item scale. After assessing the prospective association using multivariable linear regression, the mediational hypothesis was tested using path analysis.

RESULTS

There was a significant prospective association between frequency of contact with friends and relatives and CASP-12 score (0-36) in fully adjusted models. Per every one unit increase in frequency of contact, there was a 0.12 (95% CI 0.06, 0.17) increase in CASP-12 score at follow-up, accounting for sociodemographic, health-related and baseline QoL. Pathway results showed that 81% of the longitudinal effect of frequency of contact on QoL was mediated through depressive symptoms.

CONCLUSIONS

Frequent contact with friends and relatives improves QoL of older Central and Eastern European adults, partly through buffering against depressive symptoms. Interventions to improve QoL at older ages should incorporate effective management of common mental disorders such as depression.

Inflammatory markers and occurrence of falls: Bambuí Cohort Study of Aging

OBJECTIVE

Analyze whether inflammatory markers are associated with falls among older adults living in Bambuí.

METHODS

Study that analyzed baseline data from a Bambuí Cohort Study of Aging, involving 1,250 participants. Data about falls were collected from previous 12 months, classified as single or multiple occurrence and severity (participant seeking health services). Information about sociodemographic characteristics, health behaviors and health condition was also collected and used as confounding factors. The exposures of interest included interleukins (IL-1β, IL-6, IL-8, IL-10, IL-12), tumor necrosis factor (TNF), ultra-sensitive C-reactive protein (us-CRP) and chemokines (CXCL9, CCL5, CCL10, MCP1). Data were processed through logistic regression, obtaining odds ratio and 95% confidence interval (95%CI).

RESULTS

The prevalence of falls was 27.1%; 40.1% of the older adults reported multiple falls and 33.3% sought health services. After adjustments, the following elevated levels were associated with falls: us-CRP (OR = 1.46, 95%CI 1.04–2.03), CCL5 (OR = 1.38, 95%CI 1.01–1.90) and CXCL9 (OR = 1.43, 95%CI 1.02–2.02). An association was observed between the number of elevated markers and the occurrence of falls: two (OR = 1.47, 95%CI 1.02–2.12) and three (OR = 2.08, 95%CI 1.12–3.87) elevated biomarkers indicated fall probability of 32.0% and 39.4%, respectively.

CONCLUSIONS

Elevated levels of us-CRP, CCL5 and CXCL9, which were associated with falls, may contribute to a proper understanding of the mechanism associated with the occurrence of falls among older people.

Association of metabolic syndrome with inflammatory markers in a sample of community-dwelling older adults

The study aimed to identify the cutoff points for inflammatory markers that best discriminate the occurrence of metabolic syndrome in community-dwelling older adults. Baseline data were used from the elderly cohort in the city of Bambuí, Minas Gerais State, Brazil. The target exposure was presence of metabolic syndrome, defined according to the Adult Treatment Panel III criterion, and the outcomes included the following inflammatory markers: cytokines (IL-1β, IL-6, IL-10, IL-12 e TNF), chemokines (CXCL8, CXCL9, CCL2, CXCL10, and CCL5), and C-reactive protein (CRP). Definition of the cutoff points for the inflammatory markers was based on the Classification and Regression Tree (CART) method. The associations between these markers and metabolic syndrome were estimated by logistic regression models, obtaining odds ratios and 95% confidence intervals, considering adjustment for confounding factors. Prevalence of metabolic syndrome was 49.1%, and IL-1β, IL-12, and TNF levels were not associated statistically with this exposure. After adjustment, presence of metabolic syndrome was associated with higher IL-6 and CRP levels and lower CXCL8 and CCL5. Significant associations were also observed with intermediate serum CXCL9 and CXCL10 levels. The combination of markers also showed a significant and consistent association with metabolic syndrome. In addition to demonstrating an association between metabolic syndrome and a wide range of biomarkers (some not previously described in the literature), the results highlight that this association occurs at much lower levels than previously demonstrated, suggesting that metabolic syndrome plays an important role in the inflammatory profile of the older adults.

Depressive symptoms among the elderly in São Paulo city, Brazil: prevalence and associated factors (SABE Study)

OBJECTIVE

To estimate the prevalence of depressive symptoms in the elderly in São Paulo city, Brazil (SABE Study), in 2006 and to identify risk factors associated with the 2006 prevalence and protective factors among those who did not have depressive symptoms in the assessments conducted in 2000 and 2006.

METHODS

In this cross-sectional and longitudinal study, the Geriatric Depression Scale was used for inclusion in the cohort in 2000 and also in 2006.

RESULTS

The prevalence of depressive symptoms in 2006 was 14.2% (95%CI 11.8 - 16.7), and 74.8% of the participants did not present depressive symptoms in 2000 neither in 2006. Logistic regression models were constructed, with different groups of variables (socio-demographic variables, status and perception of health and memory) adjusted for sex and age. In the final logistic regression model, the following factors were associated with depressive symptoms: self-assessment of vision, oral health, memory and of general health as poor, dependence for basic activities of daily living, and moderate or severe family dysfunction. Protective factors against presenting depressive symptoms in the 2000 and 2006 phases were: being male, absence of pulmonary disease and positive self-assessment of health.

CONCLUSION

Depressive symptoms were frequent among the elderly, and were associated with health problems, dependence and family dysfunction. These factors should be addressed in health policy planning for the care of these elderly.

Multimorbidity, depression and quality of life among elderly people assisted in the Family Health Strategy in Senador Guiomard, Acre, Brazil

This study analyzed the association between multimorbidity, depression and quality of life among the elderly in the Family Health Strategy (FHS). A cross-sectional study was conducted among the elderly in the FHS in Senador Guiomard (State of Acre). The study employed the Geriatric Depression Scale (GDS-15) and the Quality of Life Questionnaire (WHOQOL-BREF). Differences in descriptive variables in elderly people with and without multimorbidity were estimated using Pearson's chi-squared test, while the associations between multimorbidity and depression and quality of life were estimated using the logistic regression technique. It was seen that elderly people with depression represented 27% of the sample, this being more prevalent among elderly people with multimorbidity than those without, the former being twice as likely to be subject to depression. Likewise, individuals with multimorbidity had a greater chance of worse quality of life in the physical, social and total quality of life domains (all with p ≤ 0.010), though not in the environmental domain (p = 0.493). Thus, multimorbidity in the elderly is associated with the presence of depression and poor quality of life, which imposes the challenge on the FHS of guaranteeing the elderly living out their senescence without suffering and diminished quality of life.

Depression in the elderly of a rural region in Southern Brazil

The aim of this study is to estimate the prevalence of depression and its associated factors in elderly residents of the rural area of Rio Grande/RS. In this cross-sectional population-based study performed with 994 elderly (≥ 60 years), whose sampling was based on the 2010 Demographic Census, the Patient Health Questionnaire 9 (PHQ-9) was used for Major Depressive Episode (EDM) screening. Descriptive, bivariate and multivariate analyses were performed using logistic regression. The overall prevalence for Major Depressive Episode screening was 8.1%. The variables independently associated with depression were: female gender, continuous use of medications, chronic diseases, body mass index and worse health perception. The creation of programs target at the elderly in the rural area, aimed at screening, early diagnosis of depression and maintenance of treatment, encompassing several factors related to health, are important actions that must be fostered by the health system.

Religiousness, social support and the use of antidepressants among the elderly: a population-based study

The purpose of the study was to investigate whether religiousness and social support were associated with the use of antidepressants among community-dwelling elders. The research involved 1,606 older adults who make up the cohort of Bambuí Project, a study on ageing and health. The dependent variable was the use of antidepressants in the last 90 days, and the exposures of interest were social support and religiousness. Logistic regression was used to test the associations and to estimate crude and adjusted Odds Ratio and their 95% confidence intervals. The chances of use of antidepressants were significantly lower among older people with higher level of religiosity (OR = 0.45; 95% CI: 0.29 to 0.70), but none of the descriptors social support was associated with the event. In this population, it is possible that religion occupies a prominent role in the arsenal of health problems coping strategies, especially mental. Health professionals attending this particular segment of the population (elderly people with depressive disorders) should consider religiousness of patients when the proposed guidelines and treatment in coping with their mental suffering.

Factors associated with and prevalence of depressive features amongst older adults in an urban city in eastern China

Background

Mental health problems have become serious for older Chinese adults who have lived through the process of urbanisation. This current research aimed to determine the prevalence of and associated factors for depressive features in a community-based sample of older adults in China.

Methods

A community-based survey of 4077 adults aged 60 or older was conducted in Suzhou, China. Information including demographic characteristics, health behaviours, social support, disease histories and physical function was collected using a pre-designed questionnaire. Depressive features were assessed using the self-rating depression scale. Multivariate logistic regression analysis was performed to identify associated factors for depression.

Results

The overall prevalence of depressive features in the surveyed population was 47.4% (45.9% in men and 48.5% in women). In a multiple logistic regression analysis, the significant variables of depressive features were no fixed occupation (odds ratio [OR] = 0.28; 95% confidence interval [CI]: 0.21–0.37), doing non-technical and service work (OR = 0.23; 95% CI: 0.19–0.28) or being a manager and technical personnel (OR = 0.25; 95% CI: 0.19–0.32), physical activities (OR = 0.71; 95% CI: 0.61–0.82), never taking dietary supplements (OR = 0.73; 95% CI: 0.58–0.91), not having hobbies (OR = 1.34; 95% CI: 1.15–1.56), never interacting with neighbours (OR = 1.79; 95% CI: 1.28–2.50), cold relationship with a spouse (OR = 3.34; 95% CI: 1.18–9.45) and limited activities of daily living (OR = 2.27; 95% CI: 1.91–2.69).

Conclusion

There is an urgent need for public policy interventions to address depression in elderly people located in Suzhou in China.

Sintomas depressivos em idosos: estudo transversal de base populacional

Resumo Foi realizado um estudo transversal de base populacional na cidade de Pelotas, Rio Grande do Sul, em 2014, com o objetivo de medir a prevalência e identificar os fatores associados aos sintomas depressivos em idosos. A amostragem foi realizada por conglomerados em dois estágios. Todos os idosos (≥ 60 anos) residentes nos domicílios selecionados foram convidados a participar. A ocorrência dos sintomas depressivos foi medida utilizando-se a GDS-10 (Geriatric Depression Scale) com o ponto de corte ≥ 5. Foram obtidas informações de 1.451 idosos. A prevalência dos sintomas depressivos foi de 15,2% (IC95% 13,2-17,2). Após análise multivariável, a ocorrência de sintomas depressivos foi maior entre as mulheres, os idosos de pior situação econômica, aqueles que não trabalhavam, os fisicamente inativos, aqueles com pior autoavaliação de saúde e naqueles com incapacidade funcional. Maior atenção deve ser dada à identificação de sintomas depressivos em idosos e seus fatores associados para fundamentar políticas e planejamentos de intervenções para tratamento e manejo desta doença em nível coletivo.

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.

Prevalência de sintomas depressivos e fatores associados em idosos no norte de Minas Gerais: um estudo de base populacional

Objetivo Avaliar a prevalência e os fatores associados aos sintomas depressivos em idosos não institucionalizados. Métodos Estudo transversal, analítico, de base populacional, cujos dados foram coletados entre maio e julho de 2013, em visitas domiciliares. Foi aplicado um questionário com variáveis sociodemográficas, comorbidades, utilização de serviços de saúde, escala de fragilidade (Edmonton Frail Scale), teste Timed Get Up and Go e a Escala de Depressão Geriátrica (Geriatric Depression Scale – GDS-15). Para análise estatística, as variáveis foram dicotomizadas. Conduziram-se análises bivariadas (teste qui-quadrado de Pearson) adotando-se nível de significância menor que 0,20 para inclusão das variáveis independentes no modelo múltiplo. O modelo final foi gerado por meio de análise de regressão logística múltipla e as variáveis mantidas apresentaram associação com sintomas depressivos em um nível de significância de 0,05 (p < 0,05). Resultados A prevalência de sintomas depressivos foi de 27,5%. As variáveis independentes associadas a sintomas depressivos foram: não ter companheiro (a) (OR = 1,81; IC 95% 1,214-2,713), não saber ler (OR = 1,84; IC 95% 1,19-2,836), percepção negativa sobre a própria saúde (OR = 2,12; IC 95% 1,373-3,256), tabagismo (OR = 2,31; IC 95% 1,208-4,431), alto risco de quedas (OR = 1,78; IC 95% 1,000-3,184) e fragilidade (OR = 2,38; IC 95% 1,510-3,754). Conclusões A alta prevalência de sintomas depressivos identificada entre idosos comunitários alerta para a necessidade de maiores cuidados com a população idosa.

Depressive symptoms in elderly living in areas covered by Primary Health Care Units in urban area of ​​​​Bagé, RS

OBJECTIVE

To identify the prevalence of depressive symptoms and associated factors in elderly.

METHODS

Cross-sectional study of population-based sample of 1,593 individuals aged 60 years or more in the urban area of Bagé, Rio Grande do Sul, Brazil, in 2008. Data were collected in household interviews. The prevalence of depressive symptoms was assessed using the Geriatric Depression Scale. The analysis was performed using Poisson regression with robust variance estimation.

RESULTS

The prevalence of depressive symptoms was 18.0%, with the 95% confidence interval 16.1 - 19.9. The majority of the sample consisted of women (62.8%). The mean age was 70 years, with a 8.24 standard deviation (SD); 25.1% of seniors aged 60 to 64 years and 31.2% were 75 years or older. In the adjusted analysis, depressive symptoms were significantly associated (p value < 0.05) with the elderly female, yellow, brown or indigenous descendancy, lower economic status, retired, with history of heart problems, incapacity to basic and instrumental activities of daily living, worse self-rated health and dissatisfaction with life in general. Age, marital status, education, self-reported hypertension and diabetes were not associated with depressive symptoms after adjusting for confounders.

CONCLUSION

The high prevalence of depressive symptoms in the population requires investment in preventive actions, noting the need for practices that promote active aging with the maintenance of functional activity, improving self-rated health and life satisfaction.

Depressive symptoms in institutionalized older adults

OBJECTIVE

To estimate the prevalence of depressive symptoms among institutionalized elderly individuals and to analyze factors associated with this condition.

METHODS

This was a cross-sectional study involving 462 individuals aged 60 or older, residents in long stay institutions in four Brazilian municipalities. The dependent variable was assessed using the 15-item Geriatric Depression Scale. Poisson’s regression was used to evaluate associations with co-variables. We investigated which variables were most relevant in terms of presence of depressive symptoms within the studied context through factor analysis.

RESULTS

Prevalence of depressive symptoms was 48.7%. The variables associated with depressive symptoms were: regular/bad/very bad self-rated health; comorbidities; hospitalizations; and lack of friends in the institution. Five components accounted for 49.2% of total variance of the sample: functioning, social support, sensory deficiency, institutionalization and health conditions. In the factor analysis, functionality and social support were the components which explained a large part of observed variance.

CONCLUSIONS

A high prevalence of depressive symptoms, with significant variation in distribution, was observed. Such results emphasize the importance of health conditions and functioning for institutionalized older individuals developing depression. They also point to the importance of providing opportunities for interaction among institutionalized individuals.

Screening for depression in low-income elderly patients at the primary care level: use of the patient health questionnaire-2

INTRODUCTION

Depression is one of the most common mental disorders and a leading cause of disability worldwide. It constitutes a serious public health problem, particularly among elderly individuals. Most depressed elderly patients are treated by primary care (PC) physicians. The "Patient Health Questionnaire" (PHQ-2) is an instrument used for the detection of depression in PC settings.

OBJECTIVE

Evaluate the performance of the PHQ-2 in a low-income and uneducated elderly PC population.

METHODS

A non-probabilistic population sample of 142 individuals was selected from the healthcare unit's users ≧ 60 years. Criterion validity was assessed by estimating the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the PHQ-2 in comparison with the structured interview using the DSM-IV. The estimates of sensitivity and specificity were obtained from varying cut-offs of the PHQ-2 score. A Receiver Operator Characteristic (ROC) curve was constructed and the area under the curve (AUC) was calculated.

RESULTS

The group was predominantly female (73.9%), with low education level (mean 3 years of schooling). The mean age was 72.5 years old. The prevalence of depression was 26.1%. The best values of sensitivity (0.74), specificity (0.77), PPV (0.50) e NPV (0.90) were obtained with score equal to 1. The AUC was 0.77, indicating a modest performance of the test accuracy.

CONCLUSION

The simplicity of the PHQ-2 is an advantage for its use in PC. The high NPV indicated that 90% of those who tested negative would not need additional tests. However, the low PPV indicated that the PHQ-2 is not sufficient to screen for depression. The application of the instrument could be the first step of the screening, that would include a second step to all those with positive tests formerly.

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.

Higher prevalence of major depressive symptoms in Brazilians aged 14 and older

OBJECTIVE

Depression is a highly prevalent condition and is considered a major public health issue. The aim of the present study was to estimate the prevalence of depressive symptoms in the Brazilian population and establish their sociodemographic correlates.

METHOD

A cross-sectional study was conducted between November 2005 and April 2006. Data were collected in face-to-face interviews using a standardized questionnaire. The sample consisted of 3,007 interviews with individuals aged 14 years and older and followed a probabilistic design covering the Brazilian national territory. Depressive symptoms were assessed according to the Center for Epidemiologic Studies Depression Scale.

RESULTS

The observed prevalence of depressive symptoms was 28.3% (13% mild/moderate; 15.3% major/severe; p < 0.01). Increased depressive symptom rates were associated with being a female, being 45 years of age and older, having lower educational attainment, being single, having family income of up to 2.5 times minimum wage, and living in the northern region of Brazil (p < 0.05).

CONCLUSIONS

The prevalence of depressive symptoms in Brazil is high, with major depressive symptoms being the most frequent form of this symptomatology. Considering the biopsychosocial model of mental disorders, this survey points to the involvement of psychosocial factors in the prevalence of depressive symptoms in Brazil.

Social relations and depression in late life-a systematic review

OBJECTIVE

Social relations have become the focus of much research attention when studying depressive symptoms in older adults. Research indicates that social support and being embedded in a network may reduce the risk for depression. The aim of the review was to analyze the association of social relations and depression in older adults.

METHODS

Electronic databases were searched systematically for potentially relevant articles published from January 2000 to December 2012. Thirty-seven studies met the inclusion criteria for this review.

RESULTS

Factors of social relations were categorized into 12 domains. Factors regarding the qualitative aspects of social relations seem to be more consistent among studies and therefore provide more explicit results. Thus, social support, quality of relations, and presence of confidants were identified as factors of social relations significantly associated with depression. The quantitative aspects of social relations seem to be more inconsistent. Cultural differences become most obvious in terms of the quantitative aspects of social relations.

CONCLUSION

Despite the inconsistent results and the methodological limitations of the studies, this review identified a number of factors of social relations that are significantly associated with depression. The review indicates that it is needful to investigate social relations in all their complexity and not reduce them to one dimension. Simultaneously, it is important to conduct longitudinal studies because studies with cross-sectional design do not allow us to draw conclusions on causality. Beyond that, cultural differences need to be considered.

Assessment of social support and its association to depression, self-perceived health and chronic diseases in elderly individuals residing in an area of poverty and social vulnerability in rio de janeiro city, Brazil

Objectives

Social support (SS) influences the elderly ability to cope with the losses of ageing process. This study was aimed at assessing SS among elderly users of a primary healthcare unit in a poor and violent area of Rio de Janeiro City, and at verifying its association with depression, self-perceived health (SPH), marital status and chronic illnesses.

Methods

A cross-sectional study was performed based on a convenience sample of 180 individuals aged 60 years or older. SS was measured with part of the Brazilian version of Medical Outcomes Study's SS scale, and SPH and depression were assessed, respectively, through one question and the Brazilian version of the Structured Clinical Interview for DSM-IV Axis I Disorders. SS medians were calculated for the categories of SPH, depression, marital status and chronic illnesses variables, and differences were evaluated with the Kruskal-Wallis and Mann-Whitney tests. Additionally, Pearson's chi-square test and logistic regression were employed to identify unadjusted and adjusted associations between SS and those variables.

Results

The participant’s mean age was 73 years old, and level of education was 3 years of school education on average. They were predominantly females (73.3%), and non-married (55.0%). Among them, 74.4% perceived their SS as satisfactory, 55.0% perceived their health as good, 27.8% were diagnosed with major depression and 83.3% had hypertension. Especially for those depressed and with bad SPH, the medians of SS measure were much lower than for others, reaching an unsatisfactory level. Moreover, controlling for other factors, non-depressed individuals were more likely (OR = 2.32) to have satisfactory SS.

Conclusion

in the violent and poor area explored in this research low SS is highly prevalent in the elderly. Depressed individuals are more likely to have low SS and this condition should be investigated in depressed elderly. The reduced scale is useful for low education individuals.

Fatores associados aos sintomas depressivos em idosos: estudo EpiFloripa

OBJETIVO Analisar a prevalência e fatores associados a sintomas depressivos em idosos. MÉTODOS Estudo epidemiológico transversal e de base domiciliar (inquérito EpiFloripa Idoso) com 1.656 idosos, realizado por conglomerados em dois estágios, setores censitários e domicílios, em Florianópolis, SC. A prevalência de sintomas depressivos (desfecho) foi obtida por meio da Geriatric Depression Scale (GDS-15), e testadas associações segundo variáveis sociodemográficas, de saúde, comportamentais e sociais. Foram calculadas razões de prevalências brutas e ajustadas com intervalo de 95% de confiança por regressão de Poisson. RESULTADOS A prevalência de sintomas depressivos foi de 23,9% (IC95% 21,84;26,01). Os fatores de risco associados no modelo final foram: escolaridade de cinco a oito anos (RP = 1,50; IC95% 1,08; 2,08), um a quatro anos (RP = 1,62; IC95% 1,18; 2,23) e nenhum ano de estudo (RP = 2,11; IC95% 1,46;3,05); situação econômica pior quando comparada com a que tinha aos 50 anos (RP = 1,33; IC95% 1,02;1,74); déficit cognitivo (RP = 1,45; IC95% 1,21;1,75); percepção de saúde regular (RP = 1,95; IC95% 1,47;2,60) e ruim (RP = 2,64; IC95% 1,82;3,83); dependência funcional (RP = 1,83; IC95% 1,43; 2,33); e dor crônica (RP = 1,35; IC95% 1,10;1,67). Grupo etário de 70 a 79 anos (RP = 0,77; IC95% 0,64;0,93); atividade física de lazer (RP = 0,75; IC95% 0,59;0,94); participação em grupos de convivência ou religiosos (RP = 0,80; IC95% 0,64;0,99); e ter relação sexual (RP = 0,70; IC95% 0,53;0,94) mostraram-se fatores protetores ao aparecimento dos sintomas depressivos. CONCLUSÕES Situação clínica adversa, desvantagem socioeconômica e pouca atividade social e sexual mostraram-se associadas aos sintomas depressivos em idosos.

The relationship between social integration and depression in non-demented primary care patients aged 75 years and older

BACKGROUND

Social integration seems to be associated with depression in late life. But the measurement of social integration still lacks a strong consensus. To date in most studies the different domains of social integration have been examined separately.

AIMS

In order to improve comparability among studies, we used the social integration index (SII), which covers all domains of social integration, to examine the association of social integration and depression in non-demented primary care patients aged 75 years and older.

METHOD

Data were derived from the longitudinal German study on Aging, Cognition and Dementia in primary care patients. Included in the cross-sectional survey were 1028 non-demented subjects aged 75 years and older. The GDS-15 Geriatric Depression Scale was used to measure depression with a threshold of ≥6. Associations of the SII and further potential risk factors and depression were analysed using multivariate logistic regression models.

RESULTS

The SII was significantly associated with depression in the elderly. After full adjustment for all variables, odds of depression were significantly higher for lower levels of the SII, having a care level, impaired vision and mobility and subjective memory complaints.

CONCLUSION

Because the social integration index covers several aspects of social integration, the results seem to be more significant than considering only one of these domains alone. Further research is needed to prove the practicability of the social integration index and to supply the literature with consistent results regarding the association of social integration and depression. Elderly with depression could benefit from increased social networks and enhanced social integration, which points to the development of social programs and social policies that maximize the engagement of older adults in social activities and volunteer roles.

Neonatal testosterone partially organizes sex differences in stress-induced emotionality in mice

Major depressive disorder (MDD) is a debilitating disorder of altered mood regulation. Despite well established sex differences in MDD prevalence, the mechanism underlying the increased female vulnerability remains unknown. Although evidence suggests an influence of adult circulating hormone levels on mood (i.e. activational effects of hormones), MDD prevalence is consistently higher in women across life stages (and therefore hormonal states), suggesting that additional underlying structural or biological differences place women at higher risk. Studies in human subjects and in rodent models suggest a developmental origin for mood disorders, and interestingly, a developmental process also establishes sex differences in the brain. Hence, based on these parallel developmental trajectories, we hypothesized that a proportion of the female higher vulnerability to MDD may originate from the differential organization of mood regulatory neural networks early in life (i.e. organizational effects of hormones). To test this hypothesis in a rodent system, we took advantage of a well-established technique used in the field of sexual differentiation (neonatal injection with testosterone) to masculinize sexually dimorphic brain regions in female mice. We then investigated adult behavioral consequences relating to emotionality by comparing neonatal testosterone-treated females to normal males and females. Under baseline/trait conditions, neonatal testosterone treatment of female mice did not influence adult emotionality, but masculinized adult locomotor activity, as revealed by the activational actions of hormones. Conversely, the increased vulnerability of female mice to develop high emotionality following unpredictable chronic mild stress (UCMS) was partially masculinized by neonatal testosterone exposure, with no effect on post-UCMS locomotion. The elevated female UCMS-induced vulnerability did not differ between adult hormone treated groups. These results demonstrate that sex differences in adult emotionality in mice are partially caused by the organizational effects of sex hormones during development, hence supporting a developmental hypothesis of the human adult female prevalence of MDD.

Depressão em idosos inscritos no Programa de Controle de hipertensão arterial e diabetes mellitus

OBJETIVO: Identificar a presença de sintomas depressivos em idosos inscritos no Programa de controle de hipertensão arterial e diabetes mellitus em um município do Noroeste do Paraná. MÉTODOS: Estudo descritivo transversal, realizado nas unidades básicas de saúde de Sarandi - PR, com 100 idosos cadastrados no Programa Hiperdia. A seção de saúde mental do questionário Brazil Old Age Schedule (BOAS) foi usada. Os testes Mann-Whitney e Qui-quadrado foram empregados para analisar a associação entre sintomas de depressão e características sociodemográficas e estado nutricional. RESULTADOS: A maioria dos idosos era do sexo feminino (82,0%). A prevalência de sintomas depressivos foi de 30,0%, dos quais 20,0% classificados como depressão maior. Os sintomas depressivos foram mais frequentes nas mulheres (31,7%); em idosos com 80 anos e mais (33,3%); sem nenhuma escolaridade (39,1%), que moravam só (43,7%) e que apresentavam baixo peso (33,3%) ou obesidade (32,5%). CONCLUSÃO: As equipes da estratégia saúde da família devem estar atentas para a presença de sintomas depressivos em idosos, sobretudo aqueles que pertencem aos grupos de convivência já instalados.

Depressive symptoms in old age: relations among sociodemographic and self-reported health variables

BACKGROUND

Depression in old age is a complex multifactorial phenomenon that is influenced by several biopsychosocial variables. Depressive symptoms are associated with the presence of chronic diseases, with being female, with low education and low income levels, and with poor perceived health assessment. In impoverished areas, older adults may have more physical disability, as they may have less access to health services. Therefore, they may be more likely to report depressive symptoms.

METHODS

Population-based cross-sectional research was undertaken using data from the FIBRA study conducted in Ermelino Matarazzo, a poor subdistrict of the city of São Paulo, Brazil. The participants comprised 303 elderly people, aged 65 years and over, who attended a single-session data collection effort carried out at community centers. The protocol comprised sociodemographic and self-reported health variables, and the Geriatric Depression Scale.

RESULTS

The majority of the subjects reported five or fewer symptoms of depression (79.21%), reported one or two self-reported chronic diseases (56.86%), declared themselves to have one or two self-reported health problems (46.15%), and had good perceived health assessment (40.27%). The presence of depressive symptoms was associated with a higher number of self-reported health problems, poor perceived health assessment, and lower schooling levels, in the total sample and in analyses including men only. For women, depressive symptoms were associated with the number of self-reported health problems and family income.

CONCLUSION

The presence of health problems, such as falls and memory problems, lower perceived health, and low education (and low family income for women) were associated with a higher presence of depressive symptoms among elderly people in this poor area of São Paulo.

Concepções sobre transtornos mentais e seu tratamento entre idosos atendidos em um serviço público de saúde mental

Para compreender os modos de pensar e agir de pacientes idosos diante dos transtornos mentais, foram entrevistados 13 idosos (> 60 anos), atendidos em hospital público de Belo Horizonte, Minas Gerais, Brasil. A análise dos dados foi baseada no modelo de Signos, Significados e Ações. A maioria dos idosos negou a presença de qualquer transtorno mental, mas identificou signos de sofrimento mental, articulados em três categorias: nervoso, problema de cabeça e doidura. Todos referiram a sintoma que justificaria tratamento e destacaram como causas de transtornos mentais, problemas familiares e vivenciais, físicos, de alimentação e sono, fraqueza moral e debilidade atribuída ao envelhecimento. Apesar de a procura do atendimento ser atribuída à iniciativa de outrem, o tratamento é bem aceito e avaliado, mesmo com certas ressalvas articuladas aos seus próprios conceitos sobre causas e conseqüências de tais perturbações. Os medicamentos foram apontados como principal medida de tratamento, apesar dos efeitos adversos, da baixa eficácia e do modo como são preconizados pelos profissionais de saúde.

Psychiatry: life events and social support in late life depression

OBJECTIVES

To examine the association of life events and social support in the broadly defined category of depression in late life.

INTRODUCTION

Negative life events and lack of social support are associated with depression in the elderly. Currently, there are limited studies examining the association between life events, social support and late-life depression in Brazil.

METHODS

We estimated the frequency of late-life depression within a household community sample of 367 subjects aged 60 years or greater with associated factors. ''Old age symptomatic depression'' was defined using the Composite International Diagnostic Interview 1.1 tool. This diagnostic category included only late-life symptoms and consisted of the diagnoses of depression and dysthymia as well as a subsyndromal definition of depression, termed ''late subthreshold depression''. Social support and life events were assessed using the Comprehensive Assessment and Referral Evaluation (SHORT-CARE) inventory.

RESULTS

''Old age symptomatic depression'' occurred in 18.8% of the patients in the tested sample. In univariate analyses, this condition was associated with female gender, lifetime anxiety disorder and living alone. In multivariate models, ''old age symptomatic depression'' was associated with a perceived lack of social support in men and life events in women.

DISCUSSION

Social support and life events were determined to be associated with late-life depression, but it is important to keep in mind the differences between genders. Also, further exploration of the role of lifetime anxiety disorder in late-life depression may be of future importance.

CONCLUSIONS

We believe that this study helps to provide insight into the role of psychosocial factors in late-life depression.

Depressive morbidity and gender in community-dwelling Brazilian elderly: systematic review and meta-analysis

BACKGROUND

Although studies indicate that community-dwelling elderly have a lower prevalence of major depression compared with younger age groups, prevalence estimates in Brazil show that clinically significant depressive symptoms (CSDS) and depression are frequent in the older population. However, a systematic review and meta-analysis of prevalence of and factors associated with depressive disorders and symptoms in elderly Brazilians has not previously been reported. The aims were (i) to perform a survey of studies dating from 1991 to 2009 on the prevalence of depressive disorders and CSDS in elderly Brazilians residing in the community; (ii) to determine depression prevalence and identify associated factors; and (iii) develop a meta-analysis to indicate the combined prevalence and the influence of gender on depressive morbidity in this population.

METHODS

Studies were selected from articles dated between January 1991 and May 2009, extracted from Medline, LILACS and SciELO databases.

RESULTS

A total of 17 studies were found, 13 with CSDS, 1 with major depression alone and 3 with major depression and dysthymia, involving the evaluation of 15,491 elderly people. The average age of participants varied between 66.5 and 84.0 years. Prevalence rates of 7.0% for major depression, 26.0% for CSDS, and 3.3% for dysthymia were found. The odds ratios for major depression and CSDS were greater among women. There was a significant association between major depression or CSDS and cardiovascular diseases.

CONCLUSION

The review indicates greater prevalence of both major depression and CSDS compared to rates reported in the international literature, while the prevalence of dysthymia was found to be similar. The high prevalence of CSDS and its significant association with cardiovascular diseases reinforces the importance of evaluating subthreshold depressive symptoms in the elderly in the community.

Fatores associados à sintomatologia depressiva numa coorte urbana de idosos

OBJETIVO: Analisar a associação, em uma coorte urbana de idosos, entre sintomatologia depressiva e outros indicadores de capacidade funcional com a mortalidade após 15 anos de seguimento. MÉTODOS: Foram estudados os casos de 1.667 idosos (> 65 anos) residentes em Vila Clementino, na cidade de São Paulo, por meio de uma avaliação multidimensional da capacidade funcional e dos atestados de óbito referentes a mortes ocorridas entre 1991 (início do estudo) e abril de 2006. Na análise univariada foram calculadas as razões de chances e sua significância estatística foi avaliada pelo intervalo de confiança (95%). Na análise múltipla foi empregada a regressão logística. RESULTADOS: Entre os idosos estudados, 21,1% eram deprimidos em 1991. Na análise univariada, as maiores proporções de deprimidos foram observadas entre indivíduos do sexo feminino, com mais de 80 anos, analfabetos, viúvos ou solteiros, com alto nível de dependência física e de déficit cognitivo, usuários de mais medicamentos e entre os que morreram no período de seguimento de 15 anos. Na análise múltipla, controlando-se por sexo e idade, a presença de dependência física e o fato de ser usuário de mais medicamentos foram os principais preditores da ocorrência de depressão. CONCLUSÕES: A ocorrência de sintomatologia depressiva parece estar diretamente relacionada aos níveis de incapacidade física observados entre os idosos.