Journal Article

Identification of Risk Factors for Extrapulmonary Tuberculosis

Zhenhua Yang, Ying Kong, Frank Wilson, Betsy Foxman, Annadell H. Fowler, Carl F. Marrs, M. Donald Cave and Joseph H. Bates

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 38, issue 2, pages 199-205
Published in print January 2004 | ISSN: 1058-4838
Published online January 2004 | e-ISSN: 1537-6591 | DOI: https://dx.doi.org/10.1086/380644
Identification of Risk Factors for Extrapulmonary Tuberculosis

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The proportion of extrapulmonary tuberculosis cases in the United States has increased from 16% of tuberculosis cases, in 1991, to 20%, in 2001. To determine associations between the demographic, clinical, and life style characteristics of patients with tuberculosis and the occurrence of extrapulmonary tuberculosis, a retrospective case-control study was conducted. This study included 705 patients with tuberculosis, representing 98% of the culture-proven cases of tuberculosis in Arkansas from 1 January 1996 through 31 December 2000. A comparison between 85 patients with extrapulmonary tuberculosis (case patients) and 620 patients with pulmonary tuberculosis (control patients) showed women (OR, 1.98; 95% CI, 1.25–3.13), non-Hispanic blacks (OR, 2.38; 95% CI, 1.42–3.97), and HIV-positive persons (OR, 4.93; 95% CI, 1.95–12.46) to have a significantly higher risk for extrapulmonary tuberculosis than men, non-Hispanic whites, and HIV-negative persons. This study expands the knowledge base regarding the epidemiology of extrapulmonary tuberculosis and enhances our understanding of the relative contribution of host-related factors to the pathogenesis of tuberculosis.

Journal Article.  3212 words.  Illustrated.

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

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