Fig. 3

Association between the risk-adjusted mortality and four indicators of critical care capacity. Association between the risk-adjusted mortality of COVID-19 patients with invasive mechanical ventilation and four indicators of critical care capacity, including numbers of ICU beds, HDU beds, resource-rich ICU beds, and intensivists per 100,000 individuals. Mortality was adjusted for 5-year age category, sex, body mass index category, and outbreaks of COVID-19. IMV invasive mechanical ventilation; COVID-19 coronavirus disease 2019; ICU intensive care unit; HDU high-dependency care unit