Practices that show evidence of effectiveness in improving public health outcomes when implemented in multiple real-life settings, as indicated by achievement of aims consistent with the objectives of the activities.

Effect of Physician-Delivered COVID-19 Public Health Messages and Messages Acknowledging Racial Inequity on Black and White Adults’ Knowledge, Beliefs, and Practices Related to COVID-19: A Randomized Clinical Trial

TTorres, C., Ogbu-Nwobodo, L., Alsan, M., Stanford, F. C., Banerjee, A., Breza, E., Chandrasekhar, A. G., Eichmeyer, S., Karnani, M., Loisel, T., Goldsmith-Pinkham, P., Olken, B. A., Vautrey, P. L., Warner, E., Duflo, E., COVID-19 Working Group

Release Date:

Peer Review Study

Outreach/ Education/ Communications
Healthcare Access and Quality
Tools Included
Outside U.S.

Mitigation and Prevention

The article describes a study undertaken to determine whether messages delivered by physicians improve COVID-19 knowledge and preventive behaviors, and to assess the differential effectiveness of messages tailored to the Black community. This randomized control trial that included a sample of self-identified White and Black adults with less than a college education was conducted from August 7 to September 6, 2020. The final sample had 20,460 individuals (participation rate, 68%). Participants saw video messages delivered either by a Black or a White study physician. In addition, participants saw three placebo videos with generic health topics in the control groups. Participants in both the control and intervention groups were also randomly assigned to see 1 of 2 American Medical Association statements, one on structural racism and the other on drug price transparency. A physician messaging campaign effectively increased diverse groups’ COVID-19 knowledge, information-seeking, and self-reported protective behaviors.

Resource Details

Outcomes of Interest

Advancing Racial Equity, Reduction of Health Disparities

Priority Population(s)

Black or African American

Setting(s) of Implementation


Geographic Area of Implementation

Implementation Period