Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health

Objective To quantify inequalities in lifespan across multiple social determinants of health, how they act in tandem with one another, and to create a scoring system that can accurately identify subgroups of the population at high risk of mortality.Design Comparison of life tables across 54 subpopul...

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Main Authors: Marie-Pier Bergeron-Boucher, Julia Callaway, Cosmo Strozza, Jim Oeppen
Format: Article
Language:English
Published: BMJ Publishing Group 2024-08-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/14/6/e079534.full
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author Marie-Pier Bergeron-Boucher
Julia Callaway
Cosmo Strozza
Jim Oeppen
author_facet Marie-Pier Bergeron-Boucher
Julia Callaway
Cosmo Strozza
Jim Oeppen
author_sort Marie-Pier Bergeron-Boucher
collection DOAJ
description Objective To quantify inequalities in lifespan across multiple social determinants of health, how they act in tandem with one another, and to create a scoring system that can accurately identify subgroups of the population at high risk of mortality.Design Comparison of life tables across 54 subpopulations defined by combinations of four social determinants of health: sex, marital status, education and race, using data from the Multiple Cause of Death dataset and the American Community Survey.Setting United States, 2015–2019.Main outcome measures We compared the partial life expectancies (PLEs) between age 30 and 90 years of all subpopulations. We also developed a scoring system to identify subgroups at high risk of mortality.Results There is an 18.0-year difference between the subpopulations with the lowest and highest PLE. Differences in PLE between subpopulations are not significant in most pairwise comparisons. We visually illustrate how the PLE changes across social determinants of health. There is a complex interaction among social determinants of health, with no single determinant fully explaining the observed variation in lifespan. The proposed scoring system adds clarification to this interaction by yielding a single score that can be used to identify subgroups that might be at high risk of mortality. A similar scoring system by cause of death was also created to identify which subgroups could be considered at high risk of mortality from specific causes. Even if subgroups have similar mortality levels, they are often subject to different cause-specific mortality risks.Conclusions Having one characteristic associated with higher mortality is often not sufficient to be considered at high risk of mortality, but the risk increases with the number of such characteristics. Reducing inequalities is vital for societies, and better identifying individuals and subgroups at high risk of mortality is necessary for public health policy.
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spelling doaj-art-b845a6e3e76e4e9fb96964eab458f54f2024-12-29T17:55:11ZengBMJ Publishing GroupBMJ Open2044-60552024-08-0114610.1136/bmjopen-2023-079534Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of healthMarie-Pier Bergeron-Boucher0Julia Callaway1Cosmo Strozza2Jim Oeppen3Interdisciplinary Centre on Population Dynamics, Syddansk Universitet, Odense, DenmarkInterdisciplinary Centre on Population Dynamics, Syddansk Universitet, Odense, DenmarkInterdisciplinary Centre on Population Dynamics, Syddansk Universitet, Odense, DenmarkInterdisciplinary Centre on Population Dynamics, Syddansk Universitet, Odense, DenmarkObjective To quantify inequalities in lifespan across multiple social determinants of health, how they act in tandem with one another, and to create a scoring system that can accurately identify subgroups of the population at high risk of mortality.Design Comparison of life tables across 54 subpopulations defined by combinations of four social determinants of health: sex, marital status, education and race, using data from the Multiple Cause of Death dataset and the American Community Survey.Setting United States, 2015–2019.Main outcome measures We compared the partial life expectancies (PLEs) between age 30 and 90 years of all subpopulations. We also developed a scoring system to identify subgroups at high risk of mortality.Results There is an 18.0-year difference between the subpopulations with the lowest and highest PLE. Differences in PLE between subpopulations are not significant in most pairwise comparisons. We visually illustrate how the PLE changes across social determinants of health. There is a complex interaction among social determinants of health, with no single determinant fully explaining the observed variation in lifespan. The proposed scoring system adds clarification to this interaction by yielding a single score that can be used to identify subgroups that might be at high risk of mortality. A similar scoring system by cause of death was also created to identify which subgroups could be considered at high risk of mortality from specific causes. Even if subgroups have similar mortality levels, they are often subject to different cause-specific mortality risks.Conclusions Having one characteristic associated with higher mortality is often not sufficient to be considered at high risk of mortality, but the risk increases with the number of such characteristics. Reducing inequalities is vital for societies, and better identifying individuals and subgroups at high risk of mortality is necessary for public health policy.https://bmjopen.bmj.com/content/14/6/e079534.full
spellingShingle Marie-Pier Bergeron-Boucher
Julia Callaway
Cosmo Strozza
Jim Oeppen
Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
BMJ Open
title Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
title_full Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
title_fullStr Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
title_full_unstemmed Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
title_short Inequalities in lifespan and mortality risk in the US, 2015–2019: a cross-sectional analysis of subpopulations by social determinants of health
title_sort inequalities in lifespan and mortality risk in the us 2015 2019 a cross sectional analysis of subpopulations by social determinants of health
url https://bmjopen.bmj.com/content/14/6/e079534.full
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AT cosmostrozza inequalitiesinlifespanandmortalityriskintheus20152019acrosssectionalanalysisofsubpopulationsbysocialdeterminantsofhealth
AT jimoeppen inequalitiesinlifespanandmortalityriskintheus20152019acrosssectionalanalysisofsubpopulationsbysocialdeterminantsofhealth