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    Examination of Social Exclusion as a Construct and Its Impact on Mortality and Survival Time among Older Adults

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    Author
    Lee, Joonyup cc
    Advisor
    Cagle, John G.
    DeForge, Bruce R.
    Date
    2020
    Type
    dissertation
    
    Metadata
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    Abstract
    Although social exclusion may be an important predictor of mortality, there is a lack of empirical evidence on the impact of social exclusion on mortality/survival time among older adults in the U.S. The study reported in this dissertation examined the effects of social exclusion on mortality and survival time using a nationally representative sample of adults over 50 years of age. The primary goal was to better understand how social exclusion affects mortality and survival time among older adults. Data were drawn from the 2010 and 2014 Health and Retirement Study (core wave, exit wave, and psychosocial supplement) and focused on older adults aged 65 years or older (8,439 participants). Social exclusion indicators were based on previous conceptual and empirical frameworks, and a total of 21 possible indicators were measured. On the basis of correlation analyses, three indicators were excluded due to very low correlation coefficients or statistical nonsignificance. The remaining indicators nested in four social exclusion domains (material resources, social, health, and community). Average inter-item correlations supported the reliability of the remaining 18 indicators, and multiple regression models supported the validity of the four domains. The results of a Cox regression model revealed that the material resources domain had a higher influence on mortality than did the other three domains. Six individual indicators (wealth, car availability, social activity, social membership, self-rated health, and disability) were associated with mortality, adjusting for demographic variables. Kaplan–Meier survival analyses based on each indicator showed that all social exclusion indicators were significantly associated with survival rate with the exception of social support, city/town satisfaction, and neighborhood safety. The findings from this dissertation indicate that social exclusion affected mortality and survival time among older adults in the U.S. However, not all indicators were associated with mortality and survival time. The results of the dissertation imply that policies can be modified to improve social participation and access to transportation and that multidimensional services or interventions focusing on the more influential social exclusion indicators are needed (e.g., connecting resources, facilitating social connections). Further, there is a need to reconcile the differences between conceptual and empirical domains/indicators.
    Description
    2020
    Social Work
    University of Maryland, Baltimore
    Ph.D.
    Keyword
    older adults
    social exclusion
    survival time
    Marginality, Social
    Older people
    Mortality
    Survival Rate
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/13032
    Collections
    Theses and Dissertations School of Social Work
    Theses and Dissertations All Schools

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