The Impact Of Provincial Proof- Of-Vaccination Policies On Age-Specific First-Dose Uptake Of COVID-19 Vaccines In Canada

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dc.contributor.authorTiffany Fitzpatrick
dc.contributor.authorCheryl A. Camillo
dc.contributor.authorShelby Hillis
dc.contributor.authorMarin Habbick
dc.contributor.authorMonika Roerig
dc.contributor.authorNazeem Muhajarine
dc.contributor.authorSara Allin
dc.date.accessioned2023-11-09T20:13:34Z
dc.date.available2023-11-09T20:13:34Z
dc.date.issued2023-11-01
dc.descriptionThis is an open access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY-NC-ND 4.0) license, which permits others to distribute this work provided the original work is properly cited, not altered, and not used for commercial purposes. See https://creativecommons .org/licenses/by-nc-nd/4.0/.
dc.description.abstractRequirements of proof of COVID-19 vaccination were mandated for nonessential businesses and venues by Canada’s ten provinces throughout the fall of 2021. Leveraging variations in the timing of these measures across the provinces, we applied event study regression to estimate the impact the announcement of these measures had nationally on age-specific first-dose uptake in the subsequent seven-week period. Proof-of-vaccination mandate announcements were associated with a rapid, significant increase in first-dose uptake, particularly in people younger than age fifty. However, these behavioral changes were short- lived, with uptake returning to preannouncement levels—or lower—in all age groups within six weeks, despite mandates remaining in place for at least four months; this decline occurred earlier and was more apparent among adolescents ages 12–17. We estimated that nationally, 290,168 additional people received their first dose in the seven weeks after provinces announced proof-of-vaccination policies, for a 17.5 percent increase over the number of vaccinations estimated in the absence of these policies. This study provides novel age-specific evidence showing that proof-of-vaccination mandates led to an immediate, significant increase in national first-dose uptake and were particularly effective for increasing vaccination uptake in younger to middle-aged adults. Proof-of- vaccination mandates may be effective short-term policy measures for increasing population vaccination uptake, but their impact may differ across age groups.
dc.description.sponsorshipThis project was supported by funding from a CoVaRR-Net Rapid Response Research Grant. CoVaRR-Net is funded by an operating grant from the Canadian Institutes of Health Research (FRN 175622).
dc.identifier.citationFitzpatrick, T., Camillo, C.A., Hillis, S., Habbick, M., Roerig, M., Muhajarine, N., & Allin, S. (2023). The impact of provincial proof of vaccination policies on age-specific first-dose uptake of COVID-19 vaccines in Canada. Health Affairs 42(11): 1595-1605. DOI: 10.1377/hlthaff.2022.01237
dc.identifier.doi10.1377/hlthaff.2022.01237
dc.identifier.issn0278-2715
dc.identifier.issn1544-5208
dc.identifier.urihttps://hdl.handle.net/10294/16149
dc.language.isoen
dc.publisherHealth Affairs (Project Hope)
dc.relation.ispartofHealth Affairs
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleThe Impact Of Provincial Proof- Of-Vaccination Policies On Age-Specific First-Dose Uptake Of COVID-19 Vaccines In Canada
dc.typejournal-article
oaire.citation.issue11
oaire.citation.volume42
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