Results:
During the study period, 161 and 114 patients were followed in the Lop/Dox cohort and the Others cohort, respectively. The Lop/Dox cohort was older and had lower O2 saturation at admission. The proportion of patients needing intubation did not differ between the cohorts (Lop/Dox, 15∙5%; Others, 16∙7%). The overall fatality rate likewise did not differ (12∙4%) in Lop/Dox and 8∙7% in the Others cohort). Older age and elapsed time between the onset of symptoms and hospitalization, O2 saturation at admission, and the lymphocyte to white blood cell ratio were independent risk factors for poor outcomes of the illness.