147
Views
0
CrossRef citations to date
0
Altmetric
Research Notes

COVID-19 Vaccine Rollout Plans Should Consider Spatial Distribution of Age-Specific Population

Pages 1034-1044 | Received 07 Feb 2022, Accepted 01 Mar 2023, Published online: 14 Jul 2023
 

Abstract

In the early phases of COVID-19 vaccine distribution, most countries adopted age-based rollout plans due to vaccine shortages. The plans, however, might overlook different spatial distributions of each age group. In this study, we first examine separate spatial accessibility to vaccine sites varying by different age groups, transportation modes, and times to find differences in spatial patterns of accessibility scores based on the enhanced two-step floating catchment area method. We also investigate spatial inequality in measured accessibility through the Gini coefficient. Finally, we scrutinize to what extent spatial accessibility to vaccine sites is overestimated or underestimated by different age groups. Results showed that there is spatial disparity in accessibility scores between the total population and multiple age-stratified groups. We also found that transportation modes play a significant role in determining spatial patterns of accessibility to vaccine locations, whereas time was not a major factor making differences in spatial accessibility patterns. Our findings suggest that vaccine rollout plans should incorporate age-specific population distribution to maximize accessibility and minimize spatial disparity.

在新冠肺炎疫苗分发的早期阶段, 由于疫苗短缺, 大多数国家采用了基于年龄的推广计划。然而, 这些计划可能忽略了各年龄段的不同空间分布。首先探讨了疫苗接种点的空间可及性在年龄段、交通模式和时间上的差异。基于增强的两步移动搜索法, 确定了可及性打分在空间分布上的差异。研究了基于基尼系数的可及性的空间不平等。最后, 针对不同年龄段, 研究了对疫苗接种点空间可及性的高估和低估程度。在可及性打分上, 总人口和多个年龄段群体之间存在着空间差异。交通模式在疫苗接种点可及性的空间分布上有重要的决定作用, 但时间不是主要因素。研究表明, 疫苗推广计划应考虑特定年龄段人口的空间分布, 从而最大限度地提高可及性、减少空间差异。

Durante la fase inicial de distribución de la vacuna contra el COVID-19, la mayoría de los países adoptaron planes basados en la edad, debido a la escasez de vacunas. Si embargo, los planes podrían pasar por alto las diferentes distribuciones espaciales de cada grupo. En este estudio, primero examinamos por separado la accesibilidad espacial a los centros de vacunación en función de los distintos grupos de edad, los modos de transporte y los horarios, para encontrar diferencias en los patrones espaciales de los puntajes de accesibilidad basados en el método de captación de doble paso. También investigamos la desigualdad espacial en la accesibilidad, medida por medio del coeficiente de Gini. Finalmente, escudriñamos en qué medida la accesibilidad espacial a los sitios de vacunación está sobrestimada o subestimada por los diferentes grupos de edad. Los resultados mostraron que hay una disparidad espacial en los puntajes de accesibilidad entre el total de la población y los múltiples grupos estratificados por edad. Descubrimos también que los modos de transporte juegan un papel significativo en la determinación de los patrones espaciales de accesibilidad a los sitios de vacunación, en tanto que el tiempo no fue un factor importante que hiciera la diferencia en los patrones espaciales de accesibilidad. Nuestros hallazgos sugieren que los planes de distribución de vacunas deben incluir la distribución de la población por edades específicas para maximizar la accesibilidad y minimizar la disparidad espacial.

Acknowledgments

The authors are grateful to the anonymous referees and editor for their insightful critique and suggestions.

Supplemental Material

Supplemental data for this article can be accessed on the publisher’s site at: https://doi.org/10.1080/00330124.2023.2215851

Additional information

Notes on contributors

Jeon-Young Kang

JEON-YOUNG KANG is an Assistant Professor at the Department of Geography, Kyung Hee University, Seoul, South Korea, 02447. E-mail: [email protected]. His research interests lie broadly in geospatial data science, spatial simulation modeling, and CyberGIS. He leverages high-performance computing power on advanced cyberinfrastructure to discover geographic knowledge from spatial simulations.

Jihoon Jung

JIHOON JUNG is a Postdoctoral Research Associate in the Department of City and Regional Planning, University of North Carolina, Chapel Hill, Chapel Hill, NC 27599. E-mail: [email protected]. His research interests include environmental exposure, environmental health, climate change, natural disasters, and vulnerability assessment.

Kyusik Kim

KYUSIK KIM is a PhD Candidate in the Department of Geography, Florida State University, Tallahassee, FL 32306. E-mail: [email protected]. His research interests include sociospatial disparities in spatial access to opportunities and the impact of the built environment on travel mode choice.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 53.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 198.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.