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Journal Article

The authors' recent paper (1) shows that, since 2002, obesity prevalence has declined among higher socio-economic status (SES) youth but continued to increase among lower SES youth. Gao et al. (2) posit that the relative increase in obesity in the low SES population could be explained by an increasing concentration of black youth in the lower SES group or other race/ethnicity factors.

Figure S3 from ref. 1 replicates the main simulation results on the National Health and Nutrition Examination Surveys (NHANES) sample restricted to non-Hispanic whites. Compared with figure 2 in ref. 1, …