Background: Understanding public perception and behaviors toward COVID-19 is valuable for mitigating the severe epidemic. Our study aimed to investigate differences of the public from the US, UK, and Brazil on the aspects of the living environment, behaviors, attitude and risk perception. Methods: : Dataset were taken from the COVID-19 (Coronavirus) Survival Calculator project. 89554 respondents from the US (n=71812), UK (n=10392), and Brazil (n=7350) completed online questionnaire survey from April 28 to July 8. Frequencies and percentages were calculated to describe respondents’ responses. Chi-square tests with Holm-Bonferroni correction and binary logistic regression were used to determine the differences in environmental status, behaviors and worried degree of participants among the three countries, and further explore the sociodemographic characteristics related to protective measures. Results: : Brazil participants had the highest risk perception to COVID-19, followed by the US, and the UK was the lowest (39.02±24.57 vs. 32.72±22.38 vs. 29.47+22.39, P<0.001). More Brazil participants expressed that they were worried about COVID-19. The proportion of respondents from the US and UK who reported they were not worried about COVID-19 was 2.00 times (95%CI: 1.80-2.23) and 3.24 times (95%CI: 2.88-3.65) that of Brazil. A higher percentage of Brazil respondents reported they were in close contact with more than ten people, using public transport and engaging in work. Regarding behaviors, social distancing (ranges:84.9%-86.8%) and washing hands (ranges:84.8%-90.3%) were the most frequently used protective measures, but respondents from the US (69.8%) and UK (15.8%) were relatively reluctant to wear masks. Moreover, it was found that participants from ethnic minorities were more likely to take protective measures. But males, respondents under 20 years, and respondents with poor economic conditions had various degrees of neglect to take steps. Meanwhile, healthcare workers also had a relatively stronger awareness of protection. Conclusion: There are significant differences in the environment, behaviors, attitude and risk perception of the public from the US, UK and Brazil. The sociodemographic subgroups analysis indicated that it is necessary to enhance protection publicity and support for specific groups. Our findings are conducive to the public health authorities to carry out more targeted publicity work of COVID-19 protection measures.
Public risk perception and responsive behaviors in the United States, United Kingdom, and Brazil during the COVID-19 Pandemic: a cross-sectional study