Preventing emergence of drug resistant tuberculosis in Myanmar's transitioning health system.

Mishal S Khan ORCID logo; Coll Hutchison ORCID logo; Richard J Coker; Joanne Yoong; Khaung M Hane; Anh L Innes; Tin M Khaing; Sithu Aung; (2017) Preventing emergence of drug resistant tuberculosis in Myanmar's transitioning health system. Health policy and planning, 32 (suppl_). i43-i50. ISSN 0268-1080 DOI: 10.1093/heapol/czx093
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Multidrug-resistant tuberculosis (MDR-TB) is a particular threat to the populations of resource-limited countries. Although inadequate treatment of TB has been identified as a major underlying cause of drug resistance, essential information to inform changes in health service delivery and policy is missing. We investigate factors that may be driving the emergence of MDR-TB in Myanmar, a country where investment and health system reforms are ongoing to address the unexplained, high occurrence of MDR-TB. We conducted a multi-centre, retrospective case-control study in 10 townships across Yangon. Cases were 202 GeneXpert-confirmed MDR-TB patients with a history of prior first-line treatment for TB. Controls were 404 previously untreated smear-microscopy confirmed TB patients who had no evidence of resistance to anti-TB drugs. Information on patient and health service factors was collected through face-to-face patient interviews and hospital record reviews. Multivariable logistic regression analysis indicated that the following TB patient groups are at higher risk of developing MDR-TB after initial TB treatment: those who have diabetes (aOR 2.10; 95% CI 1.17-3.76), those who missed taking drugs during the initial treatment more than once weekly (aOR 2.35; 95% CI 1.18-4.65) and those with a higher socioeconomic (aOR 1.99; 95% CI 1.09-3.63) or educational status (aOR 1.78; 95% CI1.01-3.13). Coinciding with a surge in funding to improve health in Myanmar, this study identifies practices of patients and healthcare organizations that can be addressed, and high-risk TB patient groups that can be prioritized for treatment support. Specifically, the study shows that TB patients who experience frequent, short interruptions in treatment and those with diabetes may require enhanced treatment support and monitoring by health services in order to prevent further generation of drug resistance.

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