David is an epidemiologist with broad interests in population health, and particular interests in health inequalities, obesity and physical activity levels.

David contributes to the scientific development of the 1958 British birth cohort study (National Child Development Study) by planning future data collections, preparing funding applications, and helping to maximise its scientific potential.

David conducts research related to population health (epidemiology) and his specific interests include socioeconomic inequalities in health, obesity, and physical activity. The ultimate aim of this work is to provide evidence which can be used to improve population health and its equity across life.