Fig. 4

Statistically significant differences between the structure of COVID-19 confirmed cases in Bucharest and the structure of the resident population of Bucharest. We illustrate the significant differences by age groups and sex: females (a) and males (b). Brighter yellow colours designate high positive differences (more COVID-19 cases than expected when compared with the total population) and dark blue colours designate high negative differences (fewer COVID-19 cases than expected when compared with the total population).