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  • Title: Different clinical presentation of community-onset bacteremia among human immunodeficiency virus-infected and human immunodeficiency virus-uninfected adults in the ED.
    Author: Lee CC, Chu FY, Ko WC, Chi CH.
    Journal: Am J Emerg Med; 2014 Oct; 32(10):1241-7. PubMed ID: 25171801.
    Abstract:
    OBJECTIVES: The objective of this study is to analyze the differences in clinical presentation and outcome of community-onset bacteremia between human immunodeficiency virus (HIV)-infected adults and HIV-uninfected adults visiting the emergency department (ED). METHODS: A multicenter, case-control study with a ratio of 1:4 was conducted retrospectively over an 8-year period. Demographic characteristics, severity of illness, and clinical outcomes determined from chart records were analyzed. RESULTS: In total, 74 HIV-infected adults (case patients) and 288 HIV-uninfected adults (control patients) were examined. Significant differences in clinical presentation, severity, and the source of bacteremia as well as bacteremia-causing microorganisms between the case patients and control patients were observed by univariate analyses. Using multivariate analyses, the following variables were positively associated with case patients: male sex (odds ratio [OR], 3.42; P = .01), bacteremia due to endocarditis (OR, 7.68; P = .007), bacteremia due to Salmonella enteritidis (OR, 4.29; P = .03), and comorbidity with chronic hepatitis (OR, 5.65; P < .001). Moreover, several independent risk factors of 28-day mortality were discovered, including inappropriate empirical antibiotic therapy after the ED visit (OR, 9.01; P < .001), an initial syndrome with septic shock (OR, 5.37; P < .001); a Pittsburgh bacteremia score greater than or equal to 4 points at the ED (OR, 4.28; P = .002), severe underlying disease based on McCabe classification (rapid and ultimately fatal; OR, 3.31; P = .002), and bacteremia due to pneumonia (OR, 2.66; P = .03). Of note, HIV infection was not a significant factor affecting 28-day mortality. CONCLUSIONS: This study demonstrated that the clinical characteristics, the severity, and the character of bacteremia in HIV-infected and uninfected patients varied among community-onset bacteremic patients visiting the ED, despite the limited impact of HIV infection on short-term outcomes.
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