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Type 2 diabetes and tuberculosis in a dynamic bi-national border population

  • B. I. RESTREPO (a1), S. P. FISHER-HOCH (a1), J. G. CRESPO (a2), E. WHITNEY (a1), A. PEREZ (a1), B. SMITH (a3) and J. B. McCORMICK (a1)...

The epidemic of type 2 diabetes in the United States prompted us to explore the association between diabetes and tuberculosis (TB) on the South Texas–Mexico border, in a large population of mostly non-hospitalized TB patients. We examined 6 years of retrospective data from all TB patients (n=5049) in South Texas and northeastern Mexico and found diabetes self-reported by 27·8% of Texan and 17·8% of Mexican TB patients, significantly exceeding national self-reported diabetes rates for both countries. Diabetes comorbidity substantially exceeded that of HIV/AIDS. Patients with TB and diabetes were older, more likely to have haemoptysis, pulmonary cavitations, be smear positive at diagnosis, and remain positive at the end of the first (Texas) or second (Mexico) month of treatment. The impact of type 2 diabetes on TB is underappreciated, and in the light of its epidemic status in many countries, it should be actively considered by TB control programmes, particularly in older patients.

Corresponding author
University of Texas Health Science Center Houston – School of Public Health, University of Texas at Brownsville, 80 Fort Brown, SPH Bldg, Brownsville, TX 78520, USA. (Email:
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Epidemiology & Infection
  • ISSN: 0950-2688
  • EISSN: 1469-4409
  • URL: /core/journals/epidemiology-and-infection
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