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Journal of tropical medicine
By Baluku JB, Ichumar MM, Zawedde D and 15 others.
Helicobacter pylori (HP) has immunomodulatory properties, but its relationship with tuberculosis (TB) severity and outcomes remains uncertain. We evaluated the association between HP infection and TB severity and explored factors associated with HP coinfection and TB treatment outcomes.
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We enrolled adults (≥ 18 years) with drug-sensitive, newly diagnosed, bacteriologically confirmed pulmonary TB from two public clinics in Uganda. HP infection was determined using stool antigen testing. Severe TB was defined as GeneXpert cycle threshold < 16 or smear grade 3+ (microbiological), Bandim TBscore ≥ 8 (clinical), and chest X-ray Timika score > 71 (radiological). Treatment outcomes were determined ≥ 7 months after treatment initiation.
Among 200 participants, 67 (33.5%) were HP positive. Severe radiological TB was more frequent among HP-positive participants (34.8% vs. 22.1%, p = 0.060). Severe clinical (14.9% vs. 11.3%, p = 0.549) and microbiological TB (40.0% vs. 33.8%, p = 0.856) were also more frequent in HP. HP was not significantly associated with severe radiological (adjusted prevalence ratio [aPR] 1.56; 95% CI 0.96-2.53, p = 0.074), clinical (aPR 1.17; 95% CI 0.53-2.60, p = 0.694), or microbiological TB (aPR 1.14; 95% CI 0.80-1.63, p = 0.462). HP coinfection was independently associated with rural residence (aPR 1.61; 95% CI 1.04-2.47, p = 0.031), anorexia (aPR 1.72; 95% CI 1.01-2.90, p = 0.045), and lower diastolic blood pressure (aPR 0.98; 95% CI 0.96-1.00, p = 0.013). TB treatment success was similar among those with and without HP (95.5% vs. 95.5%, p = 0.180).
HP was not significantly associated with TB severity or outcomes, though a trend toward greater radiological severity warrants further investigation in larger, prospective studies.
Published in Journal of tropical medicine. The abstract is shown as published and remains the work of its authors; read the full article at the source.
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