Evidence map›Paper›PMID 41586447›Full record

ArticleEpidemiology and infection2026

Tracking COVID-19 vaccination barriers over time: a census-tract-level barrier index approach.

Lung-Chang Chien, L-W Antony Chen, Edom Gelaw, Cheryl M Collins, Chad L Cross, Lei Zhang, Anil T Mangla, Cassius Lockett

Abstract read
In one paragraph

Article in Epidemiology and infection, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Lung-Chang ChienDepartment of Epidemiology and Biostatistics, University of Nevada Las Vegas, USA.
L-W Antony ChenEnvironmental and Global Health, University of Nevada Las Vegas, USA.ORCID 0000-0002-2311-7506
Edom GelawDepartment of Epidemiology and Biostatistics, University of Nevada Las Vegas, USA.
Cheryl M CollinsDesert Research Institute - Las Vegas, USA.
Chad L CrossDepartment of Epidemiology and Biostatistics, University of Nevada Las Vegas, USA.
Lei ZhangSouthern Nevada Health District, USA.
Anil T ManglaDepartment of Epidemiology and Biostatistics, University of Nevada Las Vegas, USA.
Cassius LockettSouthern Nevada Health District, USA.

Funding

CDC HHS NH75OT000057-01-00
6 · The paper itself

Abstract

We developed a dynamic COVID-19 Vaccination Barrier Index (CVBI) at the census-tract level in Clark County, Nevada and assessed its geographic disparities and relationship with COVID-19 vaccination rates over time. Using monthly census-tract data from December 2020 to June 2022, the CVBI integrated demographic, socioeconomic, environmental, housing, and transportation variables, alongside surrogates for vaccination accessibility and vaccine hesitancy. Lagged weighted quantile sum regression was applied to construct monthly indices, while a Besag-York-Mollié model assessed associations with vaccination rates. The results revealed consistent vaccination barriers such as living in group quarters, housing inadequacy, and population density across all vaccination statuses (partial, full, booster). Rural and northern Clark County, especially northeastern Las Vegas, exhibited higher CVBI scores that correlated negatively with vaccination rates. Booster vaccination patterns differed, displaying fewer significantly vulnerable tracts. The dynamic nature of barriers is evident, highlighting temporal shifts in the significance of variables like driving distance to vaccine sites. This study emphasizes the importance of dynamic, localized assessments in identifying vaccination barriers, guiding public health interventions, and informing resource allocation to enhance vaccine accessibility during pandemics.

Indexed as

COVID-19COVID-19 VaccinesHealth Services AccessibilityVaccinationVaccination HesitancyCensus TractHumansNevadaSARS-CoV-2COVID-19 VaccinesBesag–York–Mollié modelCOVID-19geospatial modelinglagged weighted quantile sum regressionsocial vulnerabilityvaccination barrier

Identifiers

PMID41586447
PMCPMC12892142

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LicenceCC BY-NC-SA
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.