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Neighborhood structural disadvantage and biological aging in a sample of Black middle age and young adults

Research on the social determinants of health has suggested that neighborhood disadvantage may undermine healthy aging and is particularly relevant for understanding health disparities. Recently, this work has examined deoxyribonucleic acid methylation (DNAm)-based measures of biological aging to un...

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Published in:Social science & medicine (1982) 2022-01, Vol.293, p.114654-114654, Article 114654
Main Authors: Lei, Man-Kit, Berg, Mark T., Simons, Ronald L., Beach, Steven R.H.
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description Research on the social determinants of health has suggested that neighborhood disadvantage may undermine healthy aging and is particularly relevant for understanding health disparities. Recently, this work has examined deoxyribonucleic acid methylation (DNAm)-based measures of biological aging to understand the risk factors for morbidity and mortality. However, it is unknown whether neighborhood disadvantage is related to different indices of DNAm-based aging among Black Americans and whether such neighborhood effects vary as a function of age or gender. Our analyses of a Black American sample included 448 young adults and 493 middle-aged adults. We measured neighborhood disadvantage using the Area Deprivation Index at the census block group level. DNAm-based accelerated aging indices were measured using established procedures. Regressions with clustered standard errors were used for the analysis. Neighborhood disadvantage was independently associated with acceleration in PhenoAge, GrimAge, and DunedinPoAm, among young and middle-aged adults. Further, there was no evidence that gender conditioned the effects of neighborhood disadvantage on the aging indices. Regardless of age groups or gender, accelerated biological aging among Black Americans is partly rooted in differences in neighborhood disadvantage. From a policy standpoint, our findings suggest that programs that decrease neighborhood disadvantage are likely to increase healthy aging, especially among Black Americans. •Neighborhood disadvantage is related to speed of biological aging.•The effects of neighborhood disadvantage on speed of aging do not appear to vary by age period.•No gender differences in the effects of neighborhood disadvantage on epigenetic aging.•Identifying social determinants of aging will guide intervention efforts.
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source International Bibliography of the Social Sciences (IBSS); ScienceDirect Freedom Collection 2022-2024; Sociological Abstracts
subjects African Americans
Age groups
Aging
Biological aging
Black or African American
Black People
Censuses
Deoxyribonucleic acid
Deprivation
DNA
Gender
Health disparities
Humans
Indexes
Middle age
Middle Aged
Morbidity
Neighborhood disadvantage
Neighborhoods
Racial differences
Residence Characteristics
Risk factors
Social factors
Young Adult
Young adults
title Neighborhood structural disadvantage and biological aging in a sample of Black middle age and young adults
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