Before revision:  The difference between the scaling of cases and deaths indicates the case fatality rate decreases with city size. The latest estimates show that a 1\% increase in population associates with a 0.14\% reduction in the case fatality rate of COVID-19;
After revision:  The difference between the scaling of cases and deaths , such that every 1\% increase in population associates with a 0.14\% reduction in the case fatality rate of COVID-19;