Small association between socioeconomic status and adult fast-food consumption in US

The association between socioeconomic status and adult fast-food consumption in the U.S. By Jay L. Zagorsky , Patricia K. Smith. Economics & Human Biology
http://www.sciencedirect.com/science/article/pii/S1570677X16300363

Highlights
•   Fast-food consumption among adults varies little across SES, measured as income and wealth.
•   Descriptive analyses indicate a weak, inverted U-shaped association between fast-food and SES.
•   Checking nutrition labels frequently and drinking less soda predict less adult fast-food intake.
•    More work hours predict greater fast-food intake.

Abstract: Health follows a socioeconomic status (SES) gradient in developed countries, with disease prevalence falling as SES rises. This pattern is partially attributed to differences in nutritional intake, with the poor eating the least healthy diets. This paper examines whether there is an SES gradient in one specific aspect of nutrition: fast-food consumption. Fast food is generally high in calories and low in nutrients. We use data from the 2008, 2010, and 2012 waves of the National Longitudinal Survey of Youth (NLSY79) to test whether adult fast-food consumption in the United States falls as monetary resources rise (n = 8136). This research uses more recent data than previous fast-food studies and includes a comprehensive measure of wealth in addition to income to measure SES.