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Table 2 Comparison of study sample characteristics with 2018–2019 U.S. Census estimates

From: Social media as a recruitment platform for a nationwide online survey of COVID-19 knowledge, beliefs, and practices in the United States: methodology and feasibility analysis

VariablePercentage of study samplePercentage of adult U.S. population
Age group (years)
 Non-Hispanic Black0.713.4
 Non-Hispanic White92.360.4
 Asian/Pacific Islander1.06.1
 Native American or American Indian1.01.3
 Interracial, Mixed race, or Other2.02.7
Educational attainment 
 High School or below15.739.5
 Some college34.218.5
 Bachelor’s degree27.520.6
 Masters/Professional degree or above22.511.6
  1. Percentages may not sum to 100 due to rounding. Census estimates for age, sex, and education are among adults aged 18 years and older, while estimates for race and region are among the total population