No description available.

Les biomarqueurs de la maladie d’Alzheimer (MA) permettraient d’identifier les processus pathologiques de la maladie plusieurs années avant l’apparition des premiers signes cliniques. Ainsi, la tomographie par émission de positons (TEP) reposant sur les radio-traceurs liant les plaques amyloïdes, a ouvert de nouvelles perspectives en matière d’identification précoce de la maladie, in vivo, très en amont des premiers symptômes. Cependant, l’utilisation de ces biomarqueurs est restée limitée à de faibles effectifs de sujets, rarement suivis au-delà de quelques mois et le coût important de ces outils nous autorise à étudier leurs performances au regard des batteries de tests cognitifs et fonctionnels dont nous disposons. L’objectif général de ce travail était d’évaluer l’intérêt de l’utilisation du TEP scanner amyloïde au sein d’une population parfaitement phénotypée de sujets âgés présentant une plainte mnésique associée ou non à des signes cliniques objectifs. Notre population d’étude était constituée de 271 participants de l’essai MAPT âgés de 70 ans et plus, sans troubles cognitifs majeurs, ayant réalisé un TEP scanner amyloïde. Dans un premier travail, nous avons comparé les caractéristiques socio-démographiques et cliniques des sujets selon la présence ou non de plaques amyloïdes et d’une atteinte de la mémoire épisodique. Dans un second travail, nous avons analysé l’association transversale entre la charge amyloïde cérébrale et les performances pour les activités instrumentales de la vie quotidienne (IADL). Enfin, dans un troisième travail, nous avons comparé l’évolution des performances pour les IADL au cours des trois années de suivi en fonction de la charge amyloïde cérébrale.Les sujets avec une charge amyloïde positive au TEP présentaient de moins bonnes performances pour les IADL que ceux ayant un scanner négatif, en dépit d’un fonctionnement cognitif comparable. La présence de plaques amyloïdes cérébrales était associée à une évolution défavorable des performances pour les IADL, malgré la prise en compte de l’âge, du groupe d’intervention dans l’essai MAPT et du génotype ApoE. Notre travail montre que la présence de plaques amyloïdes cérébrales chez des sujets ayant une plainte mnésique est systématiquement associée à une moindre capacité à réaliser les activités complexes du quotidien malgré l’absence de troubles cognitifs avérés. Néanmoins, l’absence de traitement curatif de la MA et l’incertitude quant à l’évolution à long terme des sujets asymptomatiques présentant une anomalie isolée d’un biomarqueur motivent la réalisation d’autres études longitudinales, ciblées sur les sujets les plus âgés. / The biomarkers of Alzheimer’s disease (AD) have enabled the identification of its pathological features, many years before the onset of clinical symptoms. Positon Emission Tomography (PET) using radiotracers binding the amyloid plaques has, indeed, paved the way for new perspectives. However, these biomarkers have only been studies in small populations so far, with limited follow-up. Moreover, their high costs allow us to question their performances in view of their relationship to physical and cognitive assessment instruments. The main goal of our work was to assess the interest of amyloid PET in a well-phenotyped population of elderly subjects reporting memory complaints, associated with objective cognitive impairment or not. Our studied population comprised 271 participants from the MAPT trial aged 70 and over, without major cognitive impairment, who performed amyloid PET examination. The first analysis studied the socio-demographical and clinical characteristics of individuals depending on the presence of brain amyloid deposition or episodic memory impairment. A second study examined the cross-sectional association between brain amyloid load and Instrumental Activities of Daily Living (IADL) performance. The last analysis focused of the longitudinal change in IADL abilities between amyloid positive and amyloid negative participants over the 3-year follow-up.Amyloid positive subjects showed poorer abilities in IADL compared to their amyloid negative counterparts, despite similar cognitive performance. Brain amyloid load also impacted the daily functioning of individuals over time, taking in consideration confounding factors such as age, randomization group and ApoE genotyping. These findings confirmed the relationship of brain amyloid deposition to subtle changes in IADL abilities, even in the absence of cognitive impairment. Yet, the absence of disease modifying agents as well as uncertainties regarding the long-term evolution of asymptomatic individuals showing a positive biomarker are still to be determined. Further longitudinal studies including older old participants are warranted to address these concerns.

No description available.

There is evidence that a person’s financial situation is associated with their wellbeing now and in the future. However, financial stress is present in many adults’ lives, impacting their role and participation in different occupational domains such as work, health management, and instrumental activities of daily living. Financial stress is consistently one of the top three causes of stress in the United States (APA, 2015). Financial stress is associated with cumulative effects that have a negative impact on a person’s physical health (Gallo et al., 2011; Kahn & Pearlin, 2006; Sturgeon et al., 2016) and mental health (Fitch et al., 2011; Mucci et al., 2016). Improving a person’s financial wellbeing is one way to mitigate financial stress. This project focused on the factors affecting a person’s financial decision-making skills and behavior, leading to financial stress or financial wellbeing. The evidence literature and current approaches were reviewed and contributed to the development of Financially Wiser, a theory-driven evidence-based approach for developing financial literacy and positive financial management behavior that leads to improved financial wellbeing. Financially Wiser is designed as a community-based financial management education program facilitated by an occupational therapist. A pre-test post-test evaluation will be conducted to determine participant satisfaction and the degree to which the program goals were achieved.

Medication non-compliance has become one of the most prevalent reasons for hospitalization and doctor's visits by the elderly. As the elderly population is more likely to have decreased cognitive abilities, it is suggested that neuropsychological factors, especially executive function, are more influential in medication non-compliance than once thought. This study looked at executive function performance on a traditional battery of neuropsychological tests, self-report of perceived ability to perform executive function tasks, and the newly developed Pillbox Test, a performance based IADL measure. The Pillbox Test is designed to replicate a type of medication-management specific IADL as a means to asses executive function. Standard executive function measures only tap a portion of executive function, but it is believed that the Pillbox Test incorporates all four theoretical domains of executive function. The multiple measures of executive function performance were compared in three prevalent subgroups of the elderly population (mixed neurological group, cardiac medical-control group, and healthy community-control group). Results found significant differences, where the community-control and cardiac groups outperformed the mixed neurological group on the large majority of executive function tasks. Smaller differences were also noted between the community-control and cardiac groups and between the cardiac and mixed neurological groups. Together, these findings provide support for the diagnostic prevalence of mild cognitive impairment in the older adult cardiac population. Results also indicated the level of executive dysfunction on standardized neuropsychological measures was highly correlated with performance on both the Pillbox Test and the IADL based Direct Assessment of Functional Status measure. Finally, the Pillbox Test has moderate to strong ecological validity with 75% sensitivity and 87.5% specificity for five or more errors on this test.

Research has demonstrated that everyday functional abilities are compromised in mild cognitive impairment (MCI), a transitional stage between normal cognitive aging and dementia, as well as in healthy aging. These functional changes have been shown to be strong predictors of future decline, highlighting their importance. However, early changes in everyday functioning remain poorly characterized, largely due to a scarcity of sensitive measures capable of detecting subtle disruption. Recent research suggests that eye-tracking methodology may be effective in addressing this gap. Fifty-two participants (27 younger adults and 25 non-demented older adults) completed a novel eye-tracking task involving passive viewing of a naturalistic scene and verbalization of a task goal (e.g., make coffee, pack a lunch). Participants also completed a performance-based measure of everyday action that required them to enact the same tasks (e.g., coffee, lunch) that were included in the eye-tracking paradigm, self-report measures of functional ability, and neuropsychological measures. Mixed ANOVAs were conducted to examine group (young, old) and condition (passive viewing, verbalization)/task (simple, complex) effects on eye-tracking and everyday action performance. Independent samples t-tests/Mann-Whitney U tests were conducted to examine group differences in eye-tracking and everyday action performance. Correlation analyses across all measures were conducted to evaluate the potential mechanisms of eye-tracking and everyday action results. Results showed no significant group differences in the primary eye-tracking variables, but both groups made a lower proportion of fixations to distractor (i.e., non-target) objects during task verbalization compared to passive scene viewing. Older adults made more inefficient actions during performance-based everyday task completion, particularly when task demands were high. Eye tracking and everyday action variables were related to different measures of self-reported functional ability. Finally, eye-tracking variables were primarily related to neuropsychological measures of executive functions/working memory, whereas everyday action performance was most strongly related to measures of verbal learning and memory. These findings suggest that age-related functional changes at the level of eye movements may occur after changes in behavioral performance of everyday tasks. Importantly, performance-based assessment of everyday action appears sensitive to age-related decline. Additionally, naturalistic eye movements and everyday task performance may reflect distinct components of self-reported functioning and may be driven by distinct cognitive processes. Future research with refined naturalistic eye-tracking tasks and samples with a wider range of impairment is necessary to further explore these findings and improve characterization and detection of risk for dementia. / Psychology

Fundamento: O crescimento da população idosa é um fenômeno mundial. O envelhecimento aumenta o risco para a ocorrência de doenças crônicas que resultam em graus variáveis de perda da independência funcional. A elevação da idade também pode acarretar a redução da independência funcional, tornando os idosos dependentes para a realização de atividades da vida diária (AVDs) e atividades instrumentais da vida diária (AIVDs). Objetivos: O objetivo desse estudo foi avaliar a capacidade funcional, determinando a prevalência de independência funcional e as características associadas em indivíduos idosos, em uma amostra representativa de Porto Alegre, RS, bem como identificar sua associação com qualidade de vida. Essa pesquisa é um dos braços do estudo da Síndrome de Obesidade e Fatores de Risco – SOFT. Participantes e Métodos: Nesse estudo transversal, de base populacional, de indivíduos idosos com 60 e 90 anos, selecionados através de amostragem por estágios múltiplos de conglomerados, em 106 dos 2157 setores censitários de Porto Alegre. Em entrevistas domiciliares aplicou-se um questionário padronizado, para investigar características socioeconômicas, demográficas, hábitos de vida, fatores de risco para doença cardiovascular, além do índice de independência nas atividades de vida diária, desenvolvido por Katz, em1969, e a escala de independência nas atividades instrumentais da vida diária, criado por Lawton e Brody, em 1983, assim como o questionário de qualidade de vida Short Form-12 (Ware,1994). Utilizou-se o módulo Complex Samples, do SPSS, para as análises dos dados, a fim de ajustar para o efeito da amostragem. Testaram-se diferenças entre proporções utilizando-se o teste do quiquadrado de Pearson, ao analisarem-se as prevalências; análise de variância ou co-variância para compararem-se médias, e análise de regressão logística múltipla, para cálculo da odds ratio e intervalo de confiança de 95%. As análises foram para um nível de significância de 5%. Resultados: A média de idade foi semelhante entre homens e mulheres idosos, e a distribuição de idade e sexo foi similar à do censo do Instituto Brasileiro de Geografia e Estatística. Além de maior escolaridade (8,8 vs. 6,6 anos), os homens referiram estar casados mais freqüentemente (75,7%) do que as mulheres (31,9%), as quais eram predominantemente viúvas ou separadas e residiam sozinhas em maior proporção. Com exceção de cor da pele e de residir sozinho, as demais características associaram-se significativamente com a idade. Identificou-se uma relação inversa entre idade e escolaridade e com o estar casado ou residir com companheiro, e uma associação direta com aposentadoria, separação ou viuvez e o uso de dispositivos para andar. Associação direta e independente de idade e sexo foi observada entre escolaridade e independência para realizar as atividades instrumentais, mas não para as atividades da vida diária. A prática de atividade física regular foi preditora de independência funcional nas AVDs e nas AIVDs. Esse estudo verificou tendência a maior independência entre os homens para o total de domínios das AVDs (94% vs. 89%; p=0,09), assim como das AIVDs (94% vs. 88%; p=0,04). Nos homens, observou-se a redução da independência funcional para realizar a maior parte das AVDs e AIVDs com o avançar da idade. Entre as mulheres, destaca-se, a redução da independência funcional com a idade em todas as atividades, exceto usar o telefone. O sexo masculino esteve associado, independentemente da idade, a maiores escores dos componentes físico e mental da qualidade de vida. A idade associou-se inversamente com o componente físico, enquanto a escolaridade o fez de maneira direta. Entretanto, nenhuma dessas características mostrou relação com o componente mental. Ser ativo fisicamente e possuir menor número de condições crônicas se associaram tanto ao escore do componente físico quanto mental, de maneira fortemente significativa. Conclusão: Os indivíduos idosos investigados no Estudo SOFT, representam a população idosa de Porto Alegre. As diferenças entre homens e mulheres idosos incluem características socioeconômicas, hábitos de vida e independência funcional. Os homens apresentam maior qualidade de vida do que as mulheres, independentemente da idade. / Background: The growth of the elderly population is a worldwide phenomenon. The elderly have chronic diseases that lead to various degrees of incapacity, which increases with age and makes them dependent in their activities of the daily living (ADLs), and in the instrumental activities of the daily living (IADLs). Objectives: the objective of the present study was to assess the functional capacity, verifing the prevalence of functional independence in a representative sample from southern Brazil, as well as to identify its association with life quality. The present research is one of the subprojects of the study of Syndrome of Obesity and Risk Fators (SOFT). Participants and methods: This cross-sectional population-based study of elderly individuals, aged 60 to 90 years old, was selected through a multistage probability sample including participants from 106, out of 2157, census sectors of Porto Alegre. A standard questionnaire was applied in the household in order to investigate socioeconomic and demographic characteristics, life habits, risk factors for cardiovascular disease, as well as the Index of Independence in the activities of the daily living, developed by Katz (1969) and the Instrumental Activities of Daily Living Scale created by Lawton and Brody (1983). The questionnaire Short Form-12 of quality of life (Ware, 1996) was also administered. Complex Samples module of SPSS was used for data analysis in order to take into account the design effect. The differences between proportions were tested by Pearson’s chi-square test; the variance and covariance analyses were used to compare the averages and the multiple logistic regression analysis to calculate the odds ratio and 95% confidence interval. Results: the age average was similar between elderly man and women, and the sex and age distribution was similar to the one of the census of the Brazilian Institute of Geography and Statistics. Besides higher scholarity (8,8 vs. 6,6 years), men referred to being married more frequently (75,7%) than women (31,9%), which were mainly widows or were separated and residing alone more often than men. Except for the color of the skin and the fact of residing alone or not, all the researched characteristics were significantly associated with age. An inverse relationship between age and scholarity and between age and being married or residing with a companion was identified, as well as a direct relationship between age and being retired, being separated or a widow, and needing a walking assistance device. Also, it was observed a direct relationship, regardless of age and sex, between scholarity and independence to perform instrumental activities of the daily living, not however, to the activities of daily living. The practice of regular physical activity was a predicting factor for functional independence in both ADLs and IADLs. This study verified a larger tendency for independence among men for the total of the ADLs (94% vs. 89% for women; p=0,09) and IADLs(94% vs. 88% for women; p=0,04) domains. The reduction of functional independence with age among men was observed in most of the ADLs and IADLs. Among women there was a reduction of functional independence in every activity, except the use of the telephone. The masculine sex was associated, regardless of age, to higher scores on the physical and mental components of quality of life. Age associated inversely with the physical component, while scholarity made it directly, but none of those characteristics showed any relationship with the mental component. Being physically active and possessing a lower number of chronic diseases associated significantly with both mental and physical scores. Conclusion: the elderly individuals investigated in the SOFT study are representative of the elderly population of Porto Alegre. The differences between elderly man and women include: socio-economical characteristics, life habits and functional independence. Men present a higher quality of life than women regardless of age.

Fundamento: O crescimento da população idosa é um fenômeno mundial. O envelhecimento aumenta o risco para a ocorrência de doenças crônicas que resultam em graus variáveis de perda da independência funcional. A elevação da idade também pode acarretar a redução da independência funcional, tornando os idosos dependentes para a realização de atividades da vida diária (AVDs) e atividades instrumentais da vida diária (AIVDs). Objetivos: O objetivo desse estudo foi avaliar a capacidade funcional, determinando a prevalência de independência funcional e as características associadas em indivíduos idosos, em uma amostra representativa de Porto Alegre, RS, bem como identificar sua associação com qualidade de vida. Essa pesquisa é um dos braços do estudo da Síndrome de Obesidade e Fatores de Risco – SOFT. Participantes e Métodos: Nesse estudo transversal, de base populacional, de indivíduos idosos com 60 e 90 anos, selecionados através de amostragem por estágios múltiplos de conglomerados, em 106 dos 2157 setores censitários de Porto Alegre. Em entrevistas domiciliares aplicou-se um questionário padronizado, para investigar características socioeconômicas, demográficas, hábitos de vida, fatores de risco para doença cardiovascular, além do índice de independência nas atividades de vida diária, desenvolvido por Katz, em1969, e a escala de independência nas atividades instrumentais da vida diária, criado por Lawton e Brody, em 1983, assim como o questionário de qualidade de vida Short Form-12 (Ware,1994). Utilizou-se o módulo Complex Samples, do SPSS, para as análises dos dados, a fim de ajustar para o efeito da amostragem. Testaram-se diferenças entre proporções utilizando-se o teste do quiquadrado de Pearson, ao analisarem-se as prevalências; análise de variância ou co-variância para compararem-se médias, e análise de regressão logística múltipla, para cálculo da odds ratio e intervalo de confiança de 95%. As análises foram para um nível de significância de 5%. Resultados: A média de idade foi semelhante entre homens e mulheres idosos, e a distribuição de idade e sexo foi similar à do censo do Instituto Brasileiro de Geografia e Estatística. Além de maior escolaridade (8,8 vs. 6,6 anos), os homens referiram estar casados mais freqüentemente (75,7%) do que as mulheres (31,9%), as quais eram predominantemente viúvas ou separadas e residiam sozinhas em maior proporção. Com exceção de cor da pele e de residir sozinho, as demais características associaram-se significativamente com a idade. Identificou-se uma relação inversa entre idade e escolaridade e com o estar casado ou residir com companheiro, e uma associação direta com aposentadoria, separação ou viuvez e o uso de dispositivos para andar. Associação direta e independente de idade e sexo foi observada entre escolaridade e independência para realizar as atividades instrumentais, mas não para as atividades da vida diária. A prática de atividade física regular foi preditora de independência funcional nas AVDs e nas AIVDs. Esse estudo verificou tendência a maior independência entre os homens para o total de domínios das AVDs (94% vs. 89%; p=0,09), assim como das AIVDs (94% vs. 88%; p=0,04). Nos homens, observou-se a redução da independência funcional para realizar a maior parte das AVDs e AIVDs com o avançar da idade. Entre as mulheres, destaca-se, a redução da independência funcional com a idade em todas as atividades, exceto usar o telefone. O sexo masculino esteve associado, independentemente da idade, a maiores escores dos componentes físico e mental da qualidade de vida. A idade associou-se inversamente com o componente físico, enquanto a escolaridade o fez de maneira direta. Entretanto, nenhuma dessas características mostrou relação com o componente mental. Ser ativo fisicamente e possuir menor número de condições crônicas se associaram tanto ao escore do componente físico quanto mental, de maneira fortemente significativa. Conclusão: Os indivíduos idosos investigados no Estudo SOFT, representam a população idosa de Porto Alegre. As diferenças entre homens e mulheres idosos incluem características socioeconômicas, hábitos de vida e independência funcional. Os homens apresentam maior qualidade de vida do que as mulheres, independentemente da idade. / Background: The growth of the elderly population is a worldwide phenomenon. The elderly have chronic diseases that lead to various degrees of incapacity, which increases with age and makes them dependent in their activities of the daily living (ADLs), and in the instrumental activities of the daily living (IADLs). Objectives: the objective of the present study was to assess the functional capacity, verifing the prevalence of functional independence in a representative sample from southern Brazil, as well as to identify its association with life quality. The present research is one of the subprojects of the study of Syndrome of Obesity and Risk Fators (SOFT). Participants and methods: This cross-sectional population-based study of elderly individuals, aged 60 to 90 years old, was selected through a multistage probability sample including participants from 106, out of 2157, census sectors of Porto Alegre. A standard questionnaire was applied in the household in order to investigate socioeconomic and demographic characteristics, life habits, risk factors for cardiovascular disease, as well as the Index of Independence in the activities of the daily living, developed by Katz (1969) and the Instrumental Activities of Daily Living Scale created by Lawton and Brody (1983). The questionnaire Short Form-12 of quality of life (Ware, 1996) was also administered. Complex Samples module of SPSS was used for data analysis in order to take into account the design effect. The differences between proportions were tested by Pearson’s chi-square test; the variance and covariance analyses were used to compare the averages and the multiple logistic regression analysis to calculate the odds ratio and 95% confidence interval. Results: the age average was similar between elderly man and women, and the sex and age distribution was similar to the one of the census of the Brazilian Institute of Geography and Statistics. Besides higher scholarity (8,8 vs. 6,6 years), men referred to being married more frequently (75,7%) than women (31,9%), which were mainly widows or were separated and residing alone more often than men. Except for the color of the skin and the fact of residing alone or not, all the researched characteristics were significantly associated with age. An inverse relationship between age and scholarity and between age and being married or residing with a companion was identified, as well as a direct relationship between age and being retired, being separated or a widow, and needing a walking assistance device. Also, it was observed a direct relationship, regardless of age and sex, between scholarity and independence to perform instrumental activities of the daily living, not however, to the activities of daily living. The practice of regular physical activity was a predicting factor for functional independence in both ADLs and IADLs. This study verified a larger tendency for independence among men for the total of the ADLs (94% vs. 89% for women; p=0,09) and IADLs(94% vs. 88% for women; p=0,04) domains. The reduction of functional independence with age among men was observed in most of the ADLs and IADLs. Among women there was a reduction of functional independence in every activity, except the use of the telephone. The masculine sex was associated, regardless of age, to higher scores on the physical and mental components of quality of life. Age associated inversely with the physical component, while scholarity made it directly, but none of those characteristics showed any relationship with the mental component. Being physically active and possessing a lower number of chronic diseases associated significantly with both mental and physical scores. Conclusion: the elderly individuals investigated in the SOFT study are representative of the elderly population of Porto Alegre. The differences between elderly man and women include: socio-economical characteristics, life habits and functional independence. Men present a higher quality of life than women regardless of age.

Fundamento: O crescimento da população idosa é um fenômeno mundial. O envelhecimento aumenta o risco para a ocorrência de doenças crônicas que resultam em graus variáveis de perda da independência funcional. A elevação da idade também pode acarretar a redução da independência funcional, tornando os idosos dependentes para a realização de atividades da vida diária (AVDs) e atividades instrumentais da vida diária (AIVDs). Objetivos: O objetivo desse estudo foi avaliar a capacidade funcional, determinando a prevalência de independência funcional e as características associadas em indivíduos idosos, em uma amostra representativa de Porto Alegre, RS, bem como identificar sua associação com qualidade de vida. Essa pesquisa é um dos braços do estudo da Síndrome de Obesidade e Fatores de Risco – SOFT. Participantes e Métodos: Nesse estudo transversal, de base populacional, de indivíduos idosos com 60 e 90 anos, selecionados através de amostragem por estágios múltiplos de conglomerados, em 106 dos 2157 setores censitários de Porto Alegre. Em entrevistas domiciliares aplicou-se um questionário padronizado, para investigar características socioeconômicas, demográficas, hábitos de vida, fatores de risco para doença cardiovascular, além do índice de independência nas atividades de vida diária, desenvolvido por Katz, em1969, e a escala de independência nas atividades instrumentais da vida diária, criado por Lawton e Brody, em 1983, assim como o questionário de qualidade de vida Short Form-12 (Ware,1994). Utilizou-se o módulo Complex Samples, do SPSS, para as análises dos dados, a fim de ajustar para o efeito da amostragem. Testaram-se diferenças entre proporções utilizando-se o teste do quiquadrado de Pearson, ao analisarem-se as prevalências; análise de variância ou co-variância para compararem-se médias, e análise de regressão logística múltipla, para cálculo da odds ratio e intervalo de confiança de 95%. As análises foram para um nível de significância de 5%. Resultados: A média de idade foi semelhante entre homens e mulheres idosos, e a distribuição de idade e sexo foi similar à do censo do Instituto Brasileiro de Geografia e Estatística. Além de maior escolaridade (8,8 vs. 6,6 anos), os homens referiram estar casados mais freqüentemente (75,7%) do que as mulheres (31,9%), as quais eram predominantemente viúvas ou separadas e residiam sozinhas em maior proporção. Com exceção de cor da pele e de residir sozinho, as demais características associaram-se significativamente com a idade. Identificou-se uma relação inversa entre idade e escolaridade e com o estar casado ou residir com companheiro, e uma associação direta com aposentadoria, separação ou viuvez e o uso de dispositivos para andar. Associação direta e independente de idade e sexo foi observada entre escolaridade e independência para realizar as atividades instrumentais, mas não para as atividades da vida diária. A prática de atividade física regular foi preditora de independência funcional nas AVDs e nas AIVDs. Esse estudo verificou tendência a maior independência entre os homens para o total de domínios das AVDs (94% vs. 89%; p=0,09), assim como das AIVDs (94% vs. 88%; p=0,04). Nos homens, observou-se a redução da independência funcional para realizar a maior parte das AVDs e AIVDs com o avançar da idade. Entre as mulheres, destaca-se, a redução da independência funcional com a idade em todas as atividades, exceto usar o telefone. O sexo masculino esteve associado, independentemente da idade, a maiores escores dos componentes físico e mental da qualidade de vida. A idade associou-se inversamente com o componente físico, enquanto a escolaridade o fez de maneira direta. Entretanto, nenhuma dessas características mostrou relação com o componente mental. Ser ativo fisicamente e possuir menor número de condições crônicas se associaram tanto ao escore do componente físico quanto mental, de maneira fortemente significativa. Conclusão: Os indivíduos idosos investigados no Estudo SOFT, representam a população idosa de Porto Alegre. As diferenças entre homens e mulheres idosos incluem características socioeconômicas, hábitos de vida e independência funcional. Os homens apresentam maior qualidade de vida do que as mulheres, independentemente da idade. / Background: The growth of the elderly population is a worldwide phenomenon. The elderly have chronic diseases that lead to various degrees of incapacity, which increases with age and makes them dependent in their activities of the daily living (ADLs), and in the instrumental activities of the daily living (IADLs). Objectives: the objective of the present study was to assess the functional capacity, verifing the prevalence of functional independence in a representative sample from southern Brazil, as well as to identify its association with life quality. The present research is one of the subprojects of the study of Syndrome of Obesity and Risk Fators (SOFT). Participants and methods: This cross-sectional population-based study of elderly individuals, aged 60 to 90 years old, was selected through a multistage probability sample including participants from 106, out of 2157, census sectors of Porto Alegre. A standard questionnaire was applied in the household in order to investigate socioeconomic and demographic characteristics, life habits, risk factors for cardiovascular disease, as well as the Index of Independence in the activities of the daily living, developed by Katz (1969) and the Instrumental Activities of Daily Living Scale created by Lawton and Brody (1983). The questionnaire Short Form-12 of quality of life (Ware, 1996) was also administered. Complex Samples module of SPSS was used for data analysis in order to take into account the design effect. The differences between proportions were tested by Pearson’s chi-square test; the variance and covariance analyses were used to compare the averages and the multiple logistic regression analysis to calculate the odds ratio and 95% confidence interval. Results: the age average was similar between elderly man and women, and the sex and age distribution was similar to the one of the census of the Brazilian Institute of Geography and Statistics. Besides higher scholarity (8,8 vs. 6,6 years), men referred to being married more frequently (75,7%) than women (31,9%), which were mainly widows or were separated and residing alone more often than men. Except for the color of the skin and the fact of residing alone or not, all the researched characteristics were significantly associated with age. An inverse relationship between age and scholarity and between age and being married or residing with a companion was identified, as well as a direct relationship between age and being retired, being separated or a widow, and needing a walking assistance device. Also, it was observed a direct relationship, regardless of age and sex, between scholarity and independence to perform instrumental activities of the daily living, not however, to the activities of daily living. The practice of regular physical activity was a predicting factor for functional independence in both ADLs and IADLs. This study verified a larger tendency for independence among men for the total of the ADLs (94% vs. 89% for women; p=0,09) and IADLs(94% vs. 88% for women; p=0,04) domains. The reduction of functional independence with age among men was observed in most of the ADLs and IADLs. Among women there was a reduction of functional independence in every activity, except the use of the telephone. The masculine sex was associated, regardless of age, to higher scores on the physical and mental components of quality of life. Age associated inversely with the physical component, while scholarity made it directly, but none of those characteristics showed any relationship with the mental component. Being physically active and possessing a lower number of chronic diseases associated significantly with both mental and physical scores. Conclusion: the elderly individuals investigated in the SOFT study are representative of the elderly population of Porto Alegre. The differences between elderly man and women include: socio-economical characteristics, life habits and functional independence. Men present a higher quality of life than women regardless of age.

This thesis explores the relationship between the needs people experience in later life and the types of care they receive. The thesis provides evidence on the role of different types of care in supporting the needs of people aged 60+ in England using the English Longitudinal Study of Ageing (ELSA). The research presented adopts a number of new approaches to capturing the multi-dimensional nature of dependency by utilising a range of binary indicators of difficulty performing 10 actions related to upper and lower body mobility, 6 activities of daily living (ADL) and 7 instrumental activities of daily living (IADL). The thesis provides a detailed analysis of the prevalence of these items when considered independently and collectively in combination. A central aim of the research is to develop a more nuanced understanding of dependency to allow for the dimensionality of the needs experienced by older people living in their own homes to be considered. The thesis utilizes a number of different approaches, including simple binary and count-based indicators of need and more complex measures reflecting dependency across different domains of need. These approaches allow a more dynamic picture of dependency in later life to be considered. Using these measures, the research explores the role of different types of care in meeting different types of need. Of these, a unique application of an existing assessment tool is presented, the Indicator of Relative Need (IoRN), which is used as a framework to derive an equivalent measure – the Array of Need (AoN). Given the aim of the study is to investigate the multi-dimensional nature of dependency, various data reduction approaches are used including principal components analysis. Finally, research from similar studies is acknowledged and work from the Survey of Health, Ageing and Retirement in Europe (SHARE) study is reproduced using ELSA. The thesis suggests that when considering the dependency needs experienced by older people living in the community, it is important to be aware that this group includes both less and more dependent older people. As such, developing a better understanding of the dynamic relationship between dependency and the receipt of informal and formal care may require more suitable measurements of dependency.