Determinants of morbidity in adult life are often set during childhood and adolescence, either in terms of discrete events (e.g. infections, traumas) or in terms of behaviors and lifestyle (e.g. tobacco and other substance use, eating habits, physical activity). Along with this recognition, public health programs targeting young populations have become more and more frequent, with schools constituting a major setting for diverse interventions.

Capitalizing on some examples of school-based trials the seminar will highlight the methodological challenges of developing, conducting and evaluating complex interventions addressing behavioral determinants of ill health in young populations. Particular emphasis will be given to:

- The relation between theories of behavioral change, proposed actions and purported outcomes

- The trade-off between level of desired causal inference, feasibility and generalization when designing the evaluation protocol

- Methodological implication of field activities (e.g. ethical issues, recruitment of participants, handling critical accidents)

Dr Rosaria Galanti is the head of Methods and evaluation unit of the newly established Centre for Epidemiology and Social Medicine at the Stockholm County Council and an Adjunct Professor at the Department of Public Health Sciences of Karolinska Institutet. Rosaria’s research interests are in cancer epidemiology and public health intervention research. In particular, Rosaria has designed and directed several large projects on tobacco and other substance use prevention in Sweden and Europe.