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Early predictors of mortality from Pneumocystis jirovecii pneumonia in HIV-infected patients: 1985-2006 Walzer PD; Evans HE; Copas AJ; Edwards SG; Grant AD; Miller RFClin Infect Dis 2008[Feb]; 46 (4): 625-33BACKGROUND: Pneumocystis jirovecii pneumonia (PCP) remains the leading cause of opportunistic infection among human immunodeficiency virus (HIV)-infected persons. Previous studies of PCP that identified case-fatality risk factors involved small numbers of patients, were performed over few years, and often focused on patients who were admitted to the intensive care unit. OBJECTIVE: The objective of this study was to identify case-fatality risk factors present at or soon after hospitalization among adult HIV-infected patients admitted to University College London Hospitals (London, United Kingdom) from June 1985 through June 2006. PATIENTS AND METHODS: We performed a review of case notes for 494 consecutive patients with 547 episodes of laboratory-confirmed PCP. RESULTS: Overall mortality was 13.5%. Mortality was 10.1% for the period from 1985 through 1989, 16.9% for the period from 1990 through June 1996, and 9.7% for the period from July 1996 through 2006 (P = .142). Multivariate analysis identified factors associated with risk of death, including increasing patient age (adjusted odds ratio [AOR], 1.54; 95% confidence interval [CI], 1.11-2.23; P = .011), subsequent episode of PCP (AOR, 2.27; 95% CI, 1.14-4.52; P = .019), low hemoglobin level at hospital admission (AOR, 0.70; 95% CI, 0.60-0.83; P < .001), low partial pressure of oxygen breathing room air at hospital admission (AOR, 0.70; 95% CI, 0.60-0.81; P < .001), presence of medical comorbidity (AOR, 3.93; 95% CI, 1.77-8.72; P = .001), and pulmonary Kaposi sarcoma (AOR, 6.95; 95% CI, 2.26-21.37; P = .001). Patients with a first episode of PCP were sicker (mean partial pressure of oxygen at admission +/- standard deviation, 9.3+/-2.0 kPa) than those with a second or third episode of PCP (mean partial pressure of oxygen at admission +/- standard deviation, 9.9+/-1.9 kPa; P = .008), but mortality among patients with a first episode of PCP (12.5%) was lower than mortality among patients with subsequent episodes of PCP (22.5%) (P = .019). No patient was receiving highly active antiretroviral therapy before presentation with PCP, and none began highly active antiretroviral therapy during treatment of PCP. CONCLUSIONS: Mortality risk factors for PCP were identifiable at or soon after hospitalization. The trend towards improved outcome after June 1996 occurred in the absence of highly active antiretroviral therapy.|Adult[MESH]|Aged[MESH]|Female[MESH]|HIV Infections/*complications[MESH]|Hospitalization[MESH]|Humans[MESH]|London[MESH]|Male[MESH]|Middle Aged[MESH]|Pneumocystis carinii/*isolation & purification[MESH]|Pneumonia, Pneumocystis/*mortality[MESH]|Risk Factors[MESH] |
