A dynamic panel model of the associations of sweetened beverage purchases with dietary quality and food-purchasing patterns.

ABSTRACT: Investigating the association between consumption of sweetened beverages and dietary quality is challenging because issues such as reverse causality and unmeasured confounding might result in biased and inconsistent estimates. Using a dynamic panel model with instrumental variables to address those issues, we examined the independent associations of beverages sweetened with caloric and low-calorie sweeteners with dietary quality and food-purchasing patterns. We analyzed purchase data from the Homescan survey, an ongoing, longitudinal, nationally representative US survey, from 2000 to 2010 (n = 34,294). Our model included lagged measures of dietary quality and beverage purchases (servings/day in the previous year) as exposures to predict the outcomes (macronutrient (kilocalories per capita

SUBMITTER: Piernas C 

PROVIDER: S-EPMC4425846 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature