Fig. 3

Number of days until liberation from mechanical ventilation or discharge. The horizontal axis shows days after intubation and the vertical axis shows the percentage of the variable. The black band represents the proportion of patients who died on MV. The gray band represents the proportion of patients who were deceased after liberation from MV. The orange band represents the proportion of patients who were discharged alive. The yellow band represents patients who were still hospitalized after liberation. The purple band represents the proportion of patients who were hospitalized on MV. Patients who achieved liberation once, even if they underwent MV again after an interval of 4 days from liberation, were considered liberated. MV: mechanical ventilation; CL: care level