Accurate understanding of COVID-19 safety recommendations early in the outbreak was complicated by inconsistencies in public health and media messages. We sought to characterize high-risk adults' knowledge of COVID-19 symptoms, prevention strategies, and prevention behaviors. We used data from the Chicago COVID-19 Comorbidities (C3) survey collected between March 13 thru March 20, 2020. A total of 673 predominately older adults with ≥ 1 chronic condition completed the telephone interview. Knowledge was assessed by asking participants to name three symptoms of COVID-19 and three actions to prevent infection. Participants were then asked if and how they had changed plans due to coronavirus. Most participants could identify three symptoms (71.0%) and three preventive actions (69.2%). Commonly reported symptoms included: fever (78.5%), cough (70.6%), and shortness of breath (45.2%); preventive actions included: washing hands (86.5%) and social distancing (86.2%). More than a third of participants reported social distancing themselves (38.3%), and 28.8% reported obtaining prescription medication to prepare for the outbreak. In multivariable analyses, no participant characteristics were associated with COVID-19 knowledge. Women were more likely than men, and Black adults were less likely than White adults to report practicing social distancing. Individuals with low health literacy were less likely to report obtaining medication supplies. In conclusion, though most higher-risk individuals were aware of social distancing as a prevention strategy early in the outbreak, less than half reported enacting it, and racial disparities were apparent. Consistent messaging and the provision of tangible resources may improve future adherence to safety recommendations.
Keywords: Behavior; COVID-19; Chicago; Disparities; Health literacy; Knowledge.