Family affluence and bullying victimisation affect life satisfaction in large-bodied adolescents: Evidence from 37 high-income countries

Background: Adolescents with large body sizes often experience bullying which likely affects their overall well-being. Yet, there is limited research on how bullying victimisation affects overall life satisfaction among this cohort of adolescents, and how family affluence moderates this relationship. Objective: This study investigates the moderation effects of family affluence in the association between bullying victimisation and life satisfaction among adolescents with large bodies. Setting and participants: This research involved 16,240 adolescents with large bodies based on the World Health Organization's Body Mass Index Chart/Classification for ages 13 to 15 years from 37 high-income countries in Europe and North America. Design: The study used data from the Health Behaviour in School-aged Children (HBSC) survey, a cross-national study of adolescent health and well-being. Hypotheses were assessed through mixed effects binary logit models with random intercepts, accounting for data clustering and variations across regions. Results: After controlling for covariates, both cyberbullying (AOR = 1.72; 95 % CI = 1.48-2.00) and traditional bullying (AOR = 1.74, 95 % CI: 1.53-1.99) were significantly associated with lower life satisfaction compared with no bullying experience among participants. Family affluence partly moderated these associations, wherein the highest level of affluence reduced the effects of cyberbullying (AOR = 1.57, 95 % CI: 1.09-2.27) and traditional bullying (AOR = 1.41, 95 % CI: 1.02-1.96) on life satisfaction compared to lower levels. Conclusion: Both traditional and cyberbullying significantly reduced life satisfaction among adolescents with large body sizes. However, higher family affluence moderates (reduces) these negative effects, suggesting a protective role of socioeconomic status. These findings highlight the need for targeted interventions to support bullied adolescents, particularly those with large bodies and from lower socioeconomic backgrounds.