Household contact management of drug-resistant tuberculosis: a global cost-effectiveness modelling analysis of expanded preventive treatment by age

Background. Tuberculosis preventive treatment (TPT) with levofloxacin reduces tuberculosis disease incidence in multidrug-resistant or rifampicin-resistant (MDR/RR)-tuberculosis household contacts. However, with age, disease progression risk falls and the frequency of adverse events (AE) rises. Methods. To inform decision-makers, we evaluated the cost-effectiveness of expanding the use of MDR/RR-TPT by age, with and without tests of tuberculosis infection. We modelled MDR/RR-household contact management (HHCM) in 189 countries, incorporating age-dependent risks of disease progression, death an

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