Family structure and affluence in adolescent eating behaviour: a cross-national study in forty-one countries

Objective:To investigate the family structure and affluence-related inequality in adolescent eating behaviour.Design:Multivariate binary logistic regression and path analyses were employed to evaluate the impact of family structure and affluence on the consumption of fruits, vegetables, sweets and soft drinks among adolescents.Setting:The cross-national Health Behaviour in School-aged Children study in 2013/2014 across forty-one countries.Participants:Adolescents aged 11–15 years old (n 192 755).Results:Adolescents from a non-intact family were less likely to eat daily fruits (OR 0·82; 95 % CI 0·80, 0·84), vegetables (OR 0·91; 95 % CI 0·89, 0·93) and sweets (OR 0·96; 95 % CI 0·94, 0·99), but were more likely to consume soft drinks (OR 1·14; 95 % CI 1·11, 1·17), compared with their counterparts from an intact family. Adolescents who had the lowest family affluence scores (FAS) were less likely to eat daily fruits (OR 0·51; 95 % CI 0·49, 0·53), vegetables (OR 0·58; 95 % CI 0·56, 0·60) and sweets (OR 0·94; 95 % CI 0·90, 0·97), but were more likely to consume soft drinks (OR 1·25; 95 % CI 1·20, 1·30), compared with their counterparts who had the highest FAS. Across countries, a wide range of social inequality in daily consumption of foods was observed.Conclusions:Among adolescents in Europe, Canada and Israel, there was a high level of family structure and family affluence inequalities in daily food consumption. Different aspects of family socio-economic circumstances should be considered at the national level designing effective interventions to promote healthy eating among adolescents.