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Background <p>The incidence of pneumococcal disease differs based on demographic and clinical factors, yet the impact of area-level social determinants of health, particularly for children, remains less understood. We characterized the relationship between individual and area-level social vulnerability and incidence of all-cause pneumonia (ACP), acute otitis media (AOM), and invasive pneumococcal disease (IPD) among children across the US.</p> Methods <p>Using a retrospective observational design, we measured disease incidence among children 18 years and younger covered by Medicaid, using claims from 2017 through 2019. We measured social vulnerability using quintiles of the county-level Minority Health Social Vulnerability Index (MHSVI) and its six subthemes (Socioeconomic Status; Household Composition and Disability; Minority Status and Language; Housing Type and Transportation; Health Care Infrastructure and Access; Medical Vulnerability). After calculating county-level ACP, AOM, and IPD incidence rates overall and among counties in each MHSVI quintile, we used Poisson regression to characterize the relationship between social vulnerability and disease incidence, controlling for confounding by child demographic characteristics. We analyzed this relationship overall and within age and race/ethnicity subgroups.</p> Results <p>Across 38.1 million children, ACP, AOM, and IPD incidence rates were 1,767, 16,486, and 3.3 per 100,000 person-years, respectively. ACP and AOM incidence rates were lower among children in the most versus least socially vulnerable counties (unadjusted incidence rate ratio = 0.89 and 0.75, respectively; both <i>P</i> &lt; 0.0001); differences were attenuated but remained statistically significant after adjusting for child demographics. The direction of the relationship between ACP and AOM incidence and vulnerability varied by type of vulnerability: incidence was lower in counties that were most (versus least) vulnerable based on Minority Status and Language or Housing Type and Transportation, but higher in those most vulnerable based on Household Characteristics or Disability and Medical Vulnerability. Differences in IPD incidence between the most versus least vulnerable counties were generally non-significant, due to the low overall incidence.</p> Conclusions <p>Incidence of AOM and ACP in children varies significantly by demographic characteristics and county-level medical and non-medical social determinants of health. Social vulnerability may be useful to identify factors associated with disparities in pneumococcal disease and develop targeted interventions to reduce them.</p>

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Influence of area-level social vulnerability on all-cause pneumonia, all-cause acute otitis media, and invasive pneumococcal disease incidence among Medicaid-enrolled children

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月25日

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  • Salini Mohanty,
  • Michael Barna,
  • Kelsie Cassell,
  • Nicole Cossrow,
  • Peter C. Fiduccia,
  • Esther Smith-Howell,
  • Valina C. McGuinn,
  • Alyssa Evans,
  • Aparna Keshaviah,
  • Priya Shanmugam,
  • Saumya Chatrath,
  • Constance Delannoy,
  • Kristen A. Feemster,
  • Lisa Weissburg,
  • Jelena Zurovac

摘要

Background

The incidence of pneumococcal disease differs based on demographic and clinical factors, yet the impact of area-level social determinants of health, particularly for children, remains less understood. We characterized the relationship between individual and area-level social vulnerability and incidence of all-cause pneumonia (ACP), acute otitis media (AOM), and invasive pneumococcal disease (IPD) among children across the US.

Methods

Using a retrospective observational design, we measured disease incidence among children 18 years and younger covered by Medicaid, using claims from 2017 through 2019. We measured social vulnerability using quintiles of the county-level Minority Health Social Vulnerability Index (MHSVI) and its six subthemes (Socioeconomic Status; Household Composition and Disability; Minority Status and Language; Housing Type and Transportation; Health Care Infrastructure and Access; Medical Vulnerability). After calculating county-level ACP, AOM, and IPD incidence rates overall and among counties in each MHSVI quintile, we used Poisson regression to characterize the relationship between social vulnerability and disease incidence, controlling for confounding by child demographic characteristics. We analyzed this relationship overall and within age and race/ethnicity subgroups.

Results

Across 38.1 million children, ACP, AOM, and IPD incidence rates were 1,767, 16,486, and 3.3 per 100,000 person-years, respectively. ACP and AOM incidence rates were lower among children in the most versus least socially vulnerable counties (unadjusted incidence rate ratio = 0.89 and 0.75, respectively; both P < 0.0001); differences were attenuated but remained statistically significant after adjusting for child demographics. The direction of the relationship between ACP and AOM incidence and vulnerability varied by type of vulnerability: incidence was lower in counties that were most (versus least) vulnerable based on Minority Status and Language or Housing Type and Transportation, but higher in those most vulnerable based on Household Characteristics or Disability and Medical Vulnerability. Differences in IPD incidence between the most versus least vulnerable counties were generally non-significant, due to the low overall incidence.

Conclusions

Incidence of AOM and ACP in children varies significantly by demographic characteristics and county-level medical and non-medical social determinants of health. Social vulnerability may be useful to identify factors associated with disparities in pneumococcal disease and develop targeted interventions to reduce them.