A Spanish study titled Risk Factors and Prognosis of COVID-infected Patients found that the in-hospital mortality of COVID patients admitted to the ICU in the country was at 31 percent. The researchers said that the poorer prognoses of the patients were associated with the need for mechanical ventilation, age, initial severity, associated COPD, decreased platelets etc. The team also found that pneumonia-acquisition during hospitalisation often led to the persistence of coronavirus symptoms at 3 months.

The study findings are published after a follow up one year later on patients in Spanish ICUs by researchers from the Respiratory Diseases Networking Biomedical Research Centre (CIBERES).