About the Authors

Chloe McDonald

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Writing – review & editing

Chloe.McDonald@pfizer.com

Affiliation Medical Affairs, Pfizer Canada, Kirkland, QC, Canada

Ana Gabriela Grajales

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Writing – review & editing

Affiliation Medical Affairs, Pfizer Canada, Kirkland, QC, Canada

Nassim Ait Yahia

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Writing – review & editing

Affiliation Market Access, Pfizer Canada, Kirkland, QC, Canada

David Fisman

Roles Conceptualization, Methodology, Writing – review & editing

Affiliation Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada

Irene-Yanran Wang

Roles Conceptualization, Formal analysis, Methodology, Writing – original draft, Writing – review & editing

Affiliation Real World Solutions, IQVIA Solutions Canada Inc, Mississauga, QC, Canada

Natalie Nightingale

Roles Conceptualization, Formal analysis, Methodology, Project administration, Writing – review & editing

Affiliation Real World Solutions, IQVIA Solutions Canada Inc, Mississauga, QC, Canada

Calum S. Neish

Roles Conceptualization, Formal analysis, Methodology, Project administration, Writing – review & editing

Affiliation Real World Solutions, IQVIA Solutions Canada Inc, Mississauga, QC, Canada

Saranya Nair

Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

Affiliation Real World Solutions, IQVIA Solutions Canada Inc, Mississauga, QC, Canada

Mustapha Mustapha

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Writing – review & editing

Affiliation Global Value and Evidence, COVID Vaccine, Pfizer Inc. New York, New York, United States of America

Jingyan Yang

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Writing – review & editing

Affiliation Global Value and Evidence, COVID Vaccine, Pfizer Inc. New York, New York, United States of America

Competing Interests

At the time the study was conducted, Chloe McDonald, Ana Gabriela Grajales, and Nassim Ait Yahia were full-time employees at Pfizer Canada ULC; Mustapha Mustapha and Jingyan Yang were employed by Pfizer Inc.; and Irene-Yanran Wang, Natalie Nightingale, Calum S. Neish, and Saranya Nair were employed by IQVIA Solutions Canada Inc. IQVIA received financial support from Pfizer Canada ULC for this study (including manuscript preparation). This does not alter our adherence to PLOS ONE policies on sharing data and materials.