Fig. 3: Prevalence of comorbidities among the general population and by transition in the multistate model.
From: The natural history of symptomatic COVID-19 during the first wave in Catalonia

The proportion of the study population as a whole (general population) with a comorbidity of interest, and of those individuals making transition from general population to diagnosed with COVID-19 and hospitalised with COVID-19, from diagnosed with COVID-19 to hospitalised with COVID-19 and death, and from hospitalised with COVID-19 to death. COPD chronic obstructive pulmonary disease.