Journal Article

Leptospirosis: Prognostic Factors Associated with Mortality

Hervé Dupont, Déborah Dupont-Perdrizet, Jean Luc Perie, Sophie Zehner-Hansen, Bruno Jarrige and Jean Baptiste Daijardin

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 25, issue 3, pages 720-724
Published in print September 1997 | ISSN: 1058-4838
Published online September 1997 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/513767
Leptospirosis: Prognostic Factors Associated with Mortality

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To determine the prognostic factors for leptospirosis, we conducted a retrospective study of data collected in the emergency department of our hospital between 1989 and 1993. Sixty-eight patients, for whom the diagnosis of leptospirosis was based on pertinent clinical and epidemiological data and positive serology, were included in this study. Fifty-six patients (82%) were discharged from the hospital, and 12 (18%) died. Multivariate logistic regression demonstrated that five factors were independently associated with mortality: dyspnea (odds ratio [OR], 11.7; 95% confidence interval [CI], 2.8–48.5; P < .05), oliguria (OR, 9; CI, 2.1–37.9; P < .05); white blood cell count, >12,900/mm3 (OR, 2.5; CI, 1.8–3.5; P ⩽ .01), repolarization abnormalities on electrocardiograms (OR, 5.9; CI, 1.4–24.8; P ⩽ .01), and alveolar infiltrates on chest radiographs (OR, 7.3; CI, 1.7– 31.7; P ⩽ .01). Identification of these factors on admission might provide useful selection criteria for patients who need early transfer to the intensive care unit.

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Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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