Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes

Vaccine hesitancy is a significant impediment to global efforts to vaccinate against the SARS-CoV-2 virus at levels that generate herd immunity. In this article, we show the utility of an inductive approach – latent class analysis (LCA) – that allows us to characterize the size and nature of differe...

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Main Authors: Timothy B. Gravelle, Joseph B. Phillips, Jason Reifler, Thomas J. Scotto
Format: Article
Language:English
Published: Taylor & Francis Group 2022-01-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2021.2008214
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author Timothy B. Gravelle
Joseph B. Phillips
Jason Reifler
Thomas J. Scotto
author_facet Timothy B. Gravelle
Joseph B. Phillips
Jason Reifler
Thomas J. Scotto
author_sort Timothy B. Gravelle
collection DOAJ
description Vaccine hesitancy is a significant impediment to global efforts to vaccinate against the SARS-CoV-2 virus at levels that generate herd immunity. In this article, we show the utility of an inductive approach – latent class analysis (LCA) – that allows us to characterize the size and nature of different vaccine attitude groups; and to compare how these groups differ across countries as well as across demographic subgroups within countries. We perform this analysis using original survey data collected in the US, UK, and Canada. We also show that these classes are strongly associated with SARS-CoV-2 vaccination intent and perceptions of the efficacy and safety of the COVID-19 vaccines, suggesting that attitudes about vaccines to fight the novel coronavirus pandemic are well explained by latent vaccine attitudes that precede the pandemic. More specifically, we find four substantive classes of vaccine attitudes: strong supporters, supporters with concerns, vaccine hesitant, and “anti-vax” as well as a fifth measurement error class. The strong “anti-vax” sentiment class is small in all three countries, while the strong supporter class is the largest across all three countries. We observe different distributions of class assignments in different demographic groups – most notably education and political leaning (partisanship and ideology).
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spelling doaj.art-d4f1854ead414ec9bf2b013d276ba1672023-09-26T12:53:16ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2022-01-0118110.1080/21645515.2021.20082142008214Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudesTimothy B. Gravelle0Joseph B. Phillips1Jason Reifler2Thomas J. Scotto3MomentiveUniversity of KentUniversity of ExeterUniversity of GlasgowVaccine hesitancy is a significant impediment to global efforts to vaccinate against the SARS-CoV-2 virus at levels that generate herd immunity. In this article, we show the utility of an inductive approach – latent class analysis (LCA) – that allows us to characterize the size and nature of different vaccine attitude groups; and to compare how these groups differ across countries as well as across demographic subgroups within countries. We perform this analysis using original survey data collected in the US, UK, and Canada. We also show that these classes are strongly associated with SARS-CoV-2 vaccination intent and perceptions of the efficacy and safety of the COVID-19 vaccines, suggesting that attitudes about vaccines to fight the novel coronavirus pandemic are well explained by latent vaccine attitudes that precede the pandemic. More specifically, we find four substantive classes of vaccine attitudes: strong supporters, supporters with concerns, vaccine hesitant, and “anti-vax” as well as a fifth measurement error class. The strong “anti-vax” sentiment class is small in all three countries, while the strong supporter class is the largest across all three countries. We observe different distributions of class assignments in different demographic groups – most notably education and political leaning (partisanship and ideology).http://dx.doi.org/10.1080/21645515.2021.2008214vaccinescovidvaccine hesitancyanti-vaxlatent class modeling
spellingShingle Timothy B. Gravelle
Joseph B. Phillips
Jason Reifler
Thomas J. Scotto
Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
Human Vaccines & Immunotherapeutics
vaccines
covid
vaccine hesitancy
anti-vax
latent class modeling
title Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
title_full Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
title_fullStr Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
title_full_unstemmed Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
title_short Estimating the size of “anti-vax” and vaccine hesitant populations in the US, UK, and Canada: comparative latent class modeling of vaccine attitudes
title_sort estimating the size of anti vax and vaccine hesitant populations in the us uk and canada comparative latent class modeling of vaccine attitudes
topic vaccines
covid
vaccine hesitancy
anti-vax
latent class modeling
url http://dx.doi.org/10.1080/21645515.2021.2008214
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