COVID-19 vaccine willingness prior to and during the COVID-19 vaccination rollout in Australia.

This study aimed to assess vaccine willingness, and the reasons why respondents were not likely to receive COVID-19 vaccine prior to and during the COVID-19 vaccine rollout. This cross-sectional survey (n = 5,130) was conducted between January and April 2021 in South Australia, Australia. Weighted multiple logistic regression was performed to assess the association between sociodemographic/health factors and outcome measures. The percentage of respondents who stated they were very likely to get vaccinated fluctuated between 50% and 78% during the survey period. The willingness of receiving COVID-19 vaccination was significantly lower among women than men (aOR: 0.70) and higher among adults ≥50 years (aOR: 1.82 for 50-69 years and aOR: 3.01 for ≥70 years vs 16-29-year olds). Other factors significantly associated with higher willingness were ≥Year 12 education (aOR: 2.50 for Year 12/TAFE/certificate/diploma vs