A tree model identified adults age ≤34 years, Johnson & Johnson primary series recipients, people from racial/ethnic minority groups, residents of nonlarge metro areas, and those living in socially vulnerable communities in the South as less likely to be boosted. These findings can guide clinical/public health outreach toward specific subpopulations.
Keywords: COVID-19; COVID-19 vaccination; booster dose; coronavirus.
Published by Oxford University Press on behalf of Infectious Diseases Society of America 2022.