Demographics, clinical characteristics, identity of pathogens, and outcomes of patients with severe pneumonia a,b.

ICU = intensive care unit; APACHE = Acute Physiology and Chronic Health Evaluation; SOFA = Sequential Organ Failure Assessment; IQR = interquartile range.aCategories of coinfection are not mutually exclusive. Some cases were associated with two or more pathogens.bCases of coinfection with organisms other than bacteria/other virus (six with Aspergillus species, four with P. jirovecii) are not presented in the Table.cThe immunocompromised state was verified if the patients: (i) had daily administration of corticosteroids (at least 5 mg per day of prednisolone or an equivalent drug), (ii) were solid organ or hematopoietic stem cell transplant recipients, (iii) had received treatment with chemotherapy for an underlying malignancy during the 6 months prior to ICU admission, and (iv) had an underlying acquired immune deficiency disorder.dIncludes two patients with chronic renal failure and two patients with end-stage renal disease.