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Published on: August 25, 2015
Increased risk of pulmonary tuberculosis in patients with gastroesophageal reflux disease
1Division of Infectious Disease, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.
Background:
Previous studies have suggested a close correlation between gastroesophageal reflux disease (GERD) and various respiratory disorders. However, the association between GERD and tuberculosis (TB) remains unexplored.
Methods:
Using data retrieved from Taiwan's National Health Insurance Research Database from 2000 to 2009, this longitudinal nationwide cohort study included a total of 63,930 patients with GERD and controls matched by age, sex and comorbidities. Risk factors associated with the development of pulmonary TB (PTB) were investigated.
Results:
Active PTB was documented in 65 (0.20%) patients with GERD and 41 (0.13%) matched cohorts within 1 year of GERD diagnosis. The incidence rate of PTB in the GERD group and the matched cohort was respectively 24.1 and 15.2 cases per 10,000 person-years. In multivariate analysis, GERD was an independent risk factor for PTB (adjusted HR 1.63, 95%CI 1.10-2.40, P = 0.015). Among patients with GERD, independent predictors for PTB included older age, male sex, chronic obstructive pulmonary disease, asthma and exposure to proton pump inhibitors (PPIs).
Conclusion:
Patients with GERD have a significantly increased risk of PTB within 1 year of GERD diagnosis. Exposure to PPIs is an independent predictor for PTB among patients with GERD.
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