Personal profile

Teaching Interests

I teach and advise medical degree students, and train postgraduate research students in health services research methods. I have supervised thirteen PhD students to completion.


I am an academic public health physician, clincial epidemiologist and health services researcher. I have worked in 4 medical schools, in the UK (Bristol, UEA) and South Africa (Cape Town, Free State), doing epidemiological and health services research, and teaching public health and research. I collaborate with a wide range of clinicians and health researchers in the UK, South Africa, East Africa, South America and the United States, together producing multidisciplinary research and original evidence to help improve essential health care in low, middle and high income countries. 

Educational and professional qualifications

  • PhD, University of Bristol

  • MSc (Public Health Medicine), London School of Hygiene and Tropical Medicine

  • Diploma in Occupational Health, University of Cape Town

  • Bachelor of Medicine and Bachelor of Surgery (MBChB), University of Cape Town

  • Fellow of the Faculty of Public Health, United Kingdom


Key Research Interests

How to improve health care, and so improve population health

  • Primary health care, especially in Africa and South America, low and middle income countries, and the NHS
  • Innovation, integration and evaluation of health care for HIV/AIDS, tuberculosis, respiratory disease, diabetes, hypertension, depression, cancer, and other long term conditions
  • Implementation research: how to get evidence into practice through complex interventions aimed at changing professional, organisational behavour, for example using education and clinical practice guidelines. What that means is illustrated here: (I have worked with the KTU continuously for 20 years). 


Multi-disciplinary health services research methodology

  • Health care evaluation of effectiveness, efficiency and equity using epidemiologic, economic, statistical and quantitative modelling methods
  • Clinical epidemiology, pragmatic randomised trials, quasi-experiments and clinical cohort studies
  • Evaluation of diagnostic tests and screening programmes
  • Causal inference and effectiveness estimation from observational data


Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 3 - Good Health and Well-being


  • Epidemiology
  • Health Economics
  • Public Health, Health Services & Primary Care
  • Behavioural and Implementation Science
  • Cardiometabolic and Gut Health
  • Ophthalmology
  • Medicine (general)
  • Mental Health
  • Other systems of medicine

Collaborations and top research areas from the last five years

Recent external collaboration on country/territory level. Dive into details by clicking on the dots or