Clinical characteristics, treatment outcomes, and prognostic factors of Pneumocystis pneumonia in non-HIV-infected patients Chia-Jung Liu,1 Tai-Fen Lee,2 Sheng-Yuan Ruan,1 Chong-Jen Yu,1 Jung-Yien Chien,1 Po-Ren Hsueh1,21Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; 2Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, TaiwanObjectives: The incidence of Pneumocystis pneumonia (PCP) has been increasing among non-HIV-infected patients. Here, we investigated the clinical characteristics, treatment outcomes, and prognostic factors of PCP in non-HIV-infected patients.Patients and methods: Information on clinical characteristics, treatment outcomes, and prognostic factors of PCP patients who were treated at a medical center in northern Taiwan from October 2015 to October 2016 were retrieved from medical records and evaluated.Results: Among the patients with PCP included in the study, 84 were non-HIV-infected and 25 were HIV-infected. Non-HIV-infected patients with PCP had a longer duration between radiographic findings and treatment (P