Given the availability of caffeinated beverages that are available and consumed by youth (e.g., caffeinated sodas; caffeinated coffee drinks; energy drinks), there is growing concern over excessive caffeine use and development of caffeine use disorders in youth (Budney and Emond, 2014; Cotter et al., 2013; Temple, 2009); thus, patterns of recent caffeine consumption will be assessed in the ABCD Study via modified Supplemental Beverage Questions (2004, Fred Hutchinson Cancer Research Center shared documents). If a youth endorses hearing of any caffeinated beverages, they are then asked the typical number of caffeinated drinks they have per week in the past 6-months (covering the categories of coffee, espresso, tea with caffeine, soda with caffeine, and energy drinks). Typical serving sizes are provided (coffee = 8 oz; espresso = 1 shot; tea = 8 oz, soda = 12 oz; energy drink = 5 oz or 2 oz for 5-h energy drink). Maximum dose (largest amount of a caffeinated beverage consumed in one day in the past 6 months) is also obtained in ounces.
