The District of Columbia is now reporting the number of positive COVID-19 cases by each of DC’s 8 wards. The plots below show the relationship of the number of positive cases per 1000 people in each ward to the % of the ward below poverty and the median household income in the ward. The data are from March 31, 2020.
Wards with 1) lower poverty and 2) higher household income have more positive COVID-19 cases per 1000 people. Since positive cases are a direct function of the number of tests performed, does this mean that more tests are being performed in higher income wards than in lower income wards?
Cases and % Below Poverty
The number of positive COVID-19 cases per 1000 people in each DC ward is negatively related to the % the ward below poverty (correlation = -.58). Circles represent each of the 8 DC wards. Circles are labelled by ward number.
Cases and Median Household Income
The number of positive COVID-19 cases per 1000 people in each DC ward is positively related to the median household income of the ward (correlation = .44). Circles represent each of the 8 DC wards. Circles are labelled by ward number.
- COVID-19 cases as of 3/31/20: https://coronavirus.dc.gov/page/coronavirus-data
- Demographics: http://www.dchealthmatters.org/demographicdata