Imperial College London


Faculty of MedicineSchool of Public Health

Research Postgraduate







UG16Norfolk PlaceSt Mary's Campus





My PhD has focused on the links between HIV, mental health, and quality of life in sub-Saharan Africa.

Using data from a long-running cohort study in Manicaland, Zimbabwe, I have built a mathematical model to assess the impact of a problem-solving therapy for depression on the HIV epidemic in Manicaland. I have also used health economic approaches to determine whether this intervention is cost-effective.

As well as analyses focusing on Zimbabwe, I have used quantitative data from a large cluster randomised trial to explore the effect of universal test and treat policies on depression and quality of life among people living with HIV in South Africa and Zambia.

This work has been under the supervision of Dr Katharina Hauck, Professor Simon Gregson, and Dr Michael Pickles.

Before my PhD, I worked on a range of projects, including an analysis of the prevalence of hypertension among people living with HIV, an assessment of the burden of chlamydia in Bristol, and an exploration of bowel morbidity outcomes among individuals receiving different anti-helminthic treatments in Uganda.



Dringus S, Davis K, Simms V, et al., 2023, Delivery of index-linked HIV testing for children: learnings from a qualitative process evaluation of the B-GAP study in Zimbabwe, Bmc Infectious Diseases, Vol:23, ISSN:1471-2334, Pages:1-10

Davis K, Moorhouse L, Maswera R, et al., 2023, Associations between HIV status and self-reported hypertension in a high HIV prevalence sub-Saharan African population: a cross-sectional study, Bmj Open, Vol:13, ISSN:2044-6055

Tang R, Bharani T, Ding J, et al., 2022, When internships disappoint., Science, Vol:378, ISSN:0036-8075, Pages:22-24


Davis K, Pickles M, Gregson S, et al., 2022, The effect of universal testing and treatment for HIV on health-related quality of life - data from the HPTN 071 (PopART) cluster randomised trial in Zambia and South Africa, AIDS 2022, International AIDS Society, ISSN:1758-2652

Shamsuddin S, Davis K, Moorhouse L, et al., 2022, Association between psychological distress and later reports of hypertension amongst adults in East Zimbabwe, 31st European Meeting on Hypertension and Cardiovascular Protection (ESH 2022), Lippincott, Williams & Wilkins, Pages:e213-e213, ISSN:0263-6352

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