Ethnic variations in overweight and obesity among children over time: findings from analyses of the H ealth S urveys for E ngland 1998–2009

Summary What is already known about this subject The increase in the prevalence of obesity among children and adolescents in E ngland has stabilized following a peak in 2004 and 2005. This stabilization conceals continued rises among more deprived and certain ethnic minority groups. It is unclear which ethnic groups in the UK experience the highest rates of overweight/obesity, how this has changed over time and how these patterns relate to socioeconomic differences between the groups. What this study adds Trends over time suggested that overweight/obesity rates for ethnic minority groups had not peaked, unlike those for white E nglish groups. B lack A frican children had higher rates of overweight and obesity, and black C aribbean children had higher rates of obesity. Differences were not explained by variations in equivalized household income. Background The increase in the prevalence of obesity among children and adolescents in E ngland since the mid‐1990s has been dramatic. Cross‐sectional evidence suggests ethnic variations in childhood obesity prevalence. Objectives The objective of the study was to examine whether and how ethnic variations in childhood overweight/obesity have changed over time, and are affected by socioeconomic factors. Method This study uses logistic regression to analyse ethnic differences in the relative likelihood of being at or above the age‐ and gender‐specific thresholds for overweight and obesity developed by the I nternational O besity T ask F orce among children aged between 2 and 15 from 11 ethnic groups included in the H ealth S urveys for E ngland between 1998 and 2009, adjusting for age, gender, year of data collection and equivalized household income. We separately analyse the likelihood of being at or above the thresholds for overweight (but below those for obesity) and obesity. Results Trends in overweight/obesity over time among ethnic minority groups do not follow those of white E nglish children. B lack A frican children had higher rates of overweight and obesity, which appear to have peaked, and black C aribbean children had higher rates of obesity than other groups examined, which appear to continue rising. These differences were not explained by socioeconomic variations between groups. Conclusion Policies are required that encourage healthy lifestyles among ethnic minority young people, while engaging with the complexities associated with these choices during childhood and adolescence.