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The association between tuberculosis and underlying risk factors was evaluated in Texas patients hospitalized in the 15 counties along the Mexico border within the remaining non-border counties. A case control analysis of the hospital discharge dataset from the Texas Health Care Information Council was performed for the years 1999–2001. A discharge diagnosis of tuberculosis identified cases (N = 4,915). Deep venous thrombosis, pulmonary embolism, and acute appendicitis conditions identified controls (N = 70,808). Risk factors associated with tuberculosis were identified by logistic regression. Diabetes patients were almost twice as likely to have tuberculosis after adjusting by sex, age, and race/ethnicity. The association was strong for the population in the Texas border region, where there are higher incidence rates of tuberculosis (odds ratio [OR]adj = 1.82; 95% CI = 1.57–2.12) compared with non-border counties (ORadj = 1.51; 95% CI = 1.36–1.67).
Received March 21, 2005. Accepted for publication December 5, 2005.
Acknowledgments: We thank Maria Luisa Fernandez for data management and Drs. Susan Fisher-Hoch, Maureen Sanderson, and Joseph McCormick, for reviewing previous versions of this manuscript. The American Society of Tropical Medicine and Hygiene (ASTMH) and the American Committee on Clinical Tropical Medicine and Travelers’ Health (ACCTMTH) assisted with publication expenses.
Financial support: This study was funded as part of a pilot core grant from the National Center on Minority Health and Health Disparities (NCMHD) Grant 1P20MD000170-010002.
* Address correspondence to Adriana Pérez, The University of Texas at Houston Health Science Center, School of Public Health, Division of Biostatistics, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520. E-mail: adriana.perez{at}uth.tmc.edu
Authors’ addresses: Adriana Pérez, Division of Biostatistics, School of Public Health, The University of Texas at Houston Health Science Center, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520, E-mail: adriana.perez{at}uth.tmc.edu. Henry Shelton Brown III, Division of Management and Community Health Sciences, School of Public Health, The University of Texas at Houston Health Science Center, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520, E-mail: shelton.brown{at}utb.edu. Blanca I. Restrepo, Division of Epidemiology, School of Public Health, The University of Texas at Houston Health Science Center, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520, E-mail: blanca.i.restrepo{at}utb.edu. All authors are members of the Hispanic Health Research Center at the Lower Rio Grande Valley, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520.
Reprints requests: Adriana Pérez, The University of Texas at Houston Health Science Center, School of Public Health. Division of Biostatistics, 80 Fort Brown SPH RAHC Building Rm N. 200, Brownsville, TX 78520.
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