Browsing by Person "Vassall, A."

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A cluster randomised trial to evaluate the effect of optimising TB/HIV integration on patient level outcomes: The merge- trial protocol
(Elsevier, 2014-10) Kufa, T.; Hippner, P.; Charalambous, S.; Kielmann, Karina; Vassall, A.; Churchyard, G.; Grant, Alison D.; Fielding, K.
Introduction We describe the design of the MERGE trial, a cluster randomised trial, to evaluate the effect of an intervention to optimise TB/HIV service integration on mortality, morbidity and retention in care among newly-diagnosed HIV-positive patients and newly-diagnosed TB patients. Design Eighteen primary care clinics were randomised to either intervention or standard of care arms. The intervention comprised activities designed to optimise TB and HIV service integration and supported by two new staff cadres-a TB/HIV integration officer and a TB screening officer-for 24 months. A process evaluation to understand how the intervention was perceived and implemented at the clinics was conducted as part of the trial. Newly-diagnosed HIV-positive patients and newly-diagnosed TB patients were enrolled into the study and followed up through telephonic interviews and case note abstractions at six monthly intervals for up to 18 months in order to measure outcomes. The primary outcomes were incidence of hospitalisations or death among newly diagnosed TB patients, incidence of hospitalisation or death among newly diagnosed HIV-positive patients and retention in care among HIV-positive TB patients. Secondary outcomes of the study included measures of cost-effectiveness. Discussion Methodological challenges of the trial such as implementation of a complex multi-faceted health systems intervention, the measurement of integration at baseline and at the end of the study and an evolving standard of care with respect to TB and HIV are discussed. The trial will contribute to understanding whether TB/HIV service integration affects patient outcomes.
Cost of point-of-care lateral flow urine lipoarabinomannan antigen testing in HIV-positive adults in South Africa
(International Union Against Tuberculosis and Lung Disease, 2018-09-01) Mukora, R.; Tlali, M.; Monkwe, S.; Charalambous, S.; Karat, Aaron S.; Fielding, K. L.; Grant, A. D.; Vassall, A.
INTRODUCTION: The World Health Organization recommends point-of-care (POC) lateral flow urine lipoarabinomannan (LF-LAM) for tuberculosis (TB) diagnosis in selected human immunodeficiency virus (HIV) positive people. South Africa had 438 000 new TB episodes in 2016, 58.9% of which were contributed by HIV-positive people. LF-LAM is being considered for scale-up in South Africa.
An intervention to optimise the delivery of integrated tuberculosis and HIV services at primary care clinics: Results of the MERGE cluster randomised trial
(Elsevier, 2018-07-25) Kufa, T.; Fielding, K. L.; Hippner, P.; Kielmann, Karina; Vassall, A.; Churchyard, G. J.; Grant, A. D.; Charalambous, S.
Objectives: To evaluate the effect of an intervention to optimize TB/HIV integration on patient outcomes.