Dr Sian Floyd

Associate Professor in Epidemiology and Medical Statistics
sian.floyd [at] lshtm.ac.uk

Sian works as a statistician/epidemiologist on the Karonga Prevention Study (KPS), which is based in northern Malawi. Her research on this project focuses on quantifying and understanding the extent to which the provision of free anti-retroviral therapy (ART) reverses the impact of the HIV epidemic. Important outcomes that are being measured include: child and adult mortality; social and economic consequences such as orphanhood, educational achievement of children, and household poverty; HIV incidence and sexual behaviour at the population level; and the percentage of the adult population who know their HIV status. She also contributes to the work of the Alpha-Network (Analysis of Longitudinal data on HIV/AIDS on Africa), which is led by Professor Basia Zaba. This network brings together researchers from demographic surveillance sites (DSS) in sub-Saharan Africa (including in Malawi, South Africa, Tanzania, Uganda, and Zimbabwe), and combines research with capacity-building through themed workshops.

Sian has also worked on case-control and cohort studies of tuberculosis, including immuno-epidemiological studies,  and is currently a member of an expert group convened by WHO whose mandate is to support 21 global focus countries to design, implement, and analyse TB prevalence surveys between 2008 and 2015.