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Predicted socio-economic status based on frequency of home dinner preparation in the USA; National Health and Nutrition Examination Survey (NHANES) 2007–2008. We stratifed by race/ethnicity and used fractional polynomial regression to predict (a) the mean expected household federal poverty level (FPL) and (b) the mean expected education level based on the number of dinners cooked at home per week (GED, general equivalency degree)
