Effect of Xpert MTB/RIF testing introduction and favorable outcome predictors for tuberculosis treatment among HIV infected adults in rural southern Mozambique. A retrospective cohort study

PloS One
Edy NacarapaEmilio J Valverde

Abstract

Global roll out of Xpert MTB/RIF technology has resulted in dramatic changes in TB diagnosis. However, benefits in resource-limited, high-burden TB/HIV settings, remain to be verified. In this paper we describe the characteristics of a large cohort of TB patients in a rural hospital in Southern Mozambique before and after Xpert MTB/RIF introduction, together with some determinants of favorable treatment outcome. We conducted a retrospective cohort study of TB infected patients ≥15 years of age, diagnosed and treated at Carmelo Hospital of Chókwè between January 1, 2006 and December 31, 2017. Patient demographic and clinical characteristics, and treatment outcomes were recorded and compared before and after Xpert MTB/RIF, which was introduced in the second semester of 2012. 9,655 patients were analyzed, with 44.1% females. HIV testing was conducted in 99.9% of patients, with 82.8% having TB/HIV co-infection. 73.2% of patients had a favorable treatment outcome. No increase was observed in the number of TB patients identified after introduction of Xpert MTB/RIF testing. Upon introduction, Xpert testing seemed to have a punctual beneficial effect on TB treatment outcomes, however this effect apparently disappeared shortly afterward...Continue Reading

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