1. Why are poorer children at higher risk of obesity? Yvonne Kelly International Centre for Lifecourse Studies in Society and Health (ICLS) www.ucl.ac.uk/icls @icls_info @childofourtime

2. Income gap in the risk of obesity at 5 & 11 years of age 3.5% 4.7%5.5%5.7%6.6%2.9% 3.8%6.2%8.8%7.9%

3. Obesity Age 5 Poorest

4. Obesity Age 11 Poorest

5. BMI trajectories in childhood

6. Predictors of increasing BMI trajectories Smoking during pregnancy Maternal BMI Skipping breakfast Sleep schedules

7. Psychosocial correlates of increasing BMI trajectories Socioemotional difficulties Low self-esteem Exploratory behaviours (drinking, smoking) Unhappiness (including with appearance)

8. Summary Risk of child obesity is socially patterned Magnitude of inequalities widened across childhood A range of pathways link family socioeconomic circumstances to child obesity Physical activity and dietary patterns most important, but markers of early health behaviours were not irrelevant Pathways through early life potentially accumulate Unhealthy BMI trajectories are linked to worse psychosocial functioning

9. Bridging social and biological sciences www.ucl.ac.uk/icls @icls_info ICLS LIFECOURSE STUDIES IN SOCIETY AND HEALTH