Factors associated with the willingness and acceptance of SARS-CoV-2 vaccine from adult subjects in China

Aim: We aimed to investigate factors affecting the willingness and acceptance of the SARS-CoV-2 vaccination among adults in China and sources of knowledge about the vaccine.Methods: A cross-sectional, web-based survey was conducted from September 8th to 15th, 2020, comprising of 23 questions. Binary logistic regression analysis was performed to examine factors associated with vaccination willingness and acceptance.Results: A total of 983 questionnaires were included and 81.3% of the participants were willing to receive the SARS-CoV-2 vaccine. With a “bachelor degree or above” (OR = 0.56, p = 0.020) and believing that the vaccine would not cause SARS-CoV-2 infection (OR = 0.50, p = 0.003) were associated with an increased willingness. Aged :30 years (OR = 0.38, p = 0.001), and believing that the vaccine would not cause SARS-CoV-2 infection (OR = 0.52, p = 0.004) were associated with higher acceptance; while from Henan province (OR = 2.49, p < 0.001), not willing to vaccinate (OR = 3.86, p < 0.001), not suffering from chronic diseases (OR = 2.25, p = 0.013), and thinking it was not safe and effective in preventing COVID-19 (OR = 1.94, p = 0.001) were correlated with a lower acceptance.Conclusions: In conclusion, age, education, and vaccine perception might be key factors affecting the vaccine willingness and acceptance. Triggering positive perception of vaccine, especially by targeting those aged <30 years, or those with below bachelor degree, or without chronic diseases might be key approaches for improving the willingness and acceptance of vaccine in China.