 One programme of research focuses on the social determinants of health, including the influences of such factors as social class, income inequality, neighbourhood context and ethnic density on such varied outcomes as mortality and morbidity, teenage birth, obesity, Sudden Infant Death Syndrome and health-related behaviours.A second research agenda focuses on smoking in pregnancy, its causal role in relation to behavioural problems in children and its psychosocial context.In August 2015, Pickett endorsed Jeremy Corbyn's campaign in the Labour Party leadership election.