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Association between prior tuberculosis disease and dysglycemia within an HIV-endemic, rural South African population

Article scientifique 2023 Anglais

Résumé

OBJECTIVE: Tuberculosis (TB) may predispose individuals to the development of diabetes. Such a relationship could have an outsized impact in high-prevalence TB settings. However, few studies have explored this relationship in populations heavily burdened by diabetes and TB. METHODS: We analyzed data from a community-based population cohort that enrolled adults in rural South Africa. Individuals were considered to have prior TB if they self-reported a history of TB treatment. We fitted sex-specific logistic regression models, adjusted for potential clinical and demographic confounders, to estimate relationships between dysglycemia (HBA1c ≥6.5%) and prior TB. Propensity score-matched cohorts accounted for the differential age distributions between comparator groups. We examined the interactions between sex, prior TB, and HIV status. RESULTS: In the analytic cohort (n = 17,593), the prevalence of prior TB was 13.8% among men and 10.7% among women. Dysglycemia was found in 9.1% of the population, and HIV prevalence was 34.0%. We found no difference in dysglycemia prevalence by prior TB (men OR 0.96, 95% CI 0.60-1.56: women OR 1.05, 95% CI 0.79-1.39). However, there was a qualitative interaction by HIV serostatus, such that among men without HIV, those with a history of TB had a greater prevalence of dysglycemia than those without prior TB (10.1% vs. 4.6%, p = 0.0077). An inverse relationship was observed among men living with HIV (prior TB 3.3% vs. no TB 7.3%, p = 0.0073). CONCLUSIONS: Treated TB disease was not associated with dysglycemia in an HIV-endemic, rural South African population. However, we found a significant interaction between prior TB and HIV status among men, suggesting distinct pathophysiological mechanisms between the two infections that may impact glucose metabolism. Longitudinal studies are needed to better establish a causal effect and underlying mechanisms related to resolved TB, HIV, and diabetes.

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Castle, A., Hoeppner, S., Magodoro, I., Singh, U., Moosa, Y., Bassett, I., Wong, E., Siedner, M., Team, o. (2023). Association between prior tuberculosis disease and dysglycemia within an HIV-endemic, rural South African population. https://doi.org/10.1371/journal.pone.0282371

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Auteur(s)

Alison Castle Susanne S. Hoeppner Itai M. Magodoro Urisha Singh Yumna Moosa Ingrid V. Bassett Emily Wong Mark J. Siedner on behalf of the Vukuzazi Study Team

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