Wang Y, Zhang Q. Are American children and adolescents of low socioeconomic status at increased risk of obesity? Changes in the association between overweight and family income between 1971 and 2002. Am J Clin Nutr. Oct 2006;84(4):707-716.
The researchers’ goal was to determine trends in the relationship between overweight and socioeconomic status (SES), using data from the National Health and Nutrition Examination Survey (NHANES). According to the findings, the relationship between overweight and SES varied by race, sex, and age. In addition, the overall relationship between overweight and SES weakened over time. Researchers concluded that interventions should also target race, not just SES.