Triantafyllos Pliakas

MSc RNutr

Research Fellow
in Local Policy Evaluation

Room 213

15-17 Tavistock Place
United Kingdom

Triantafyllos has a degree in Nutrition & Dietetics from the Technological Educational Institute of Thessaloniki, Greece. After running his own private practice for a few years as a nutritionist and dietitian he moved back to academia to complete an MSc in Human Nutrition (Public Health) at London Metropolitan University. He joined the School in 2007 as a research degree student funded by the Greek State Scholarships Foundation. Triantafyllos is currently a Research Fellow in the School for Public Health Research and a visiting Lecturer at London Metropolitan University.


Faculty of Public Health and Policy
Department of Health Services Research and Policy
Distance Education and Professional Development Office
Department of Social and Environmental Health Research


Centre for Evaluation
Global Non-Communicable Diseases
Maternal, Adolescent, Reproductive & Child Health (MARCH)


Triantafyllos is involved in teaching on the distance learning programmes at the School. He is the Module Organizer on the distance learning module Environmental Change and Global Health Policy in the MSc in Global Health Policy. He has previously acted as a distance learning tutor on Environment, Health and Sustainable Development, Environmental Epidemiology, Environmental Health Policy and Basic Epidemiology in the MSc in Public Health.

Triantafyllos has also previously contributed to the in-house teaching. He taught on the Nutrition-Related Chronic Disease module in the MSc in Nutrition for Global Health and has been a Lead tutor in the Basic Maths Support Sessions and the PASS scheme in Basic Statistics for PHP.


Triantafyllos has a background in public health nutrition and environmental epidemiology and 14 years of working experience in academic and non academic settings as a public health nutritionist and dietitian, epidemiologist, data analyst and local policy evaluation analyst.

Triantafyllos has been working in academia the past 10 years and his main area of research and work has been on evaluating the impact of the physical/built and food/alcohol environments on health outcomes and behaviours. He has a particular interest in applying quantitative approaches and undertake methodological work on using natural experiments to undertake impact policy evaluations.

Previous research included the use of neighbourhood audit tools and Geographical Information Systems to collect environmental data for the Well London RCT study (PI: Mark Petticrew) and the MRC funded Older Peoples’ Environments and Cardiovascular Risk (OPECR) study (PI: Karen Lock). These studies looked at the effects of neighbourhood environments on diet, physical activity, smoking, alcohol intake and cardiovascular risk in the UK. Triantafyllos also looked at the impact of objectively measured environmental factors on different types of physical activity in English adults using data from the Whitehall II study and the Health Survey for England. Triantafyllos was also a member of the SPHR@L team working within the Alcohol stream. He led two impact evaluations in the areas of alcohol policy; the quantitative analysis of alcohol retail sales data as part of the 'Reducing the Strength' initiative and licensing, on-license alcohol retail sales and crime and anti-social behaviour data as part of the Cumulative Impact Policy evaluation.

Research Area
Climate change
Complex interventions
Health inequalities
Health outcomes
Health policy
Health promotion
Public health
Environmental Health
Geographic Information Systems (GIS)
Global Health
Impact evaluation
Older people's health
Physical activity
Spatial analysis
GIS/Spatial analysis
Disease and Health Conditions
Cardiovascular disease
Chronic disease
Non-communicable diseases
United Kingdom
Euro area
European Union

Selected Publications

Optimising measurement of health-related characteristics of the built environment: Comparing data collected by foot-based street audits, virtual street audits and routine secondary data sources.
Pliakas, T. ; Hawkesworth, S. ; Silverwood, R.J. ; Nanchahal, K. ; Grundy, C. ; Armstrong, B. ; Casas, J.P. ; Morris, R.W. ; Wilkinson, P. ; Lock, K. ;
Health Place
A qualitative geographical information systems approach to explore how older people over 70 years interact with and define their neighbourhood environment.
Milton, S. ; Pliakas, T. ; Hawkesworth, S. ; Nanchahal, K. ; Grundy, C. ; Amuzu, A. ; Casas, J.P. ; Lock, K. ;
Health Place
Self-Care Behaviors of Adults with Type 2 Diabetes Mellitus in Greece.
Chourdakis, M.; Kontogiannis, V.; Malachas, K.; Pliakas, T.; Kritis, A.;
J Community Health
Use of retail data in the assessment of natural experiments: the case of Reducing the Strength, an intervention to reduce alcohol availability
Egan, M.; Pliakas, T.; Grace, D.; McGill, E.; Jones, A.; Wong, J.; Aalders, S.; Lock, K.
The Lancet
See all Triantafyllos Pliakas's Publications