Emerging epidemiological and laboratory-based research has documented that the combined consumption of alcohol with energy drinks (AEDs) leads to unique and potentially serious health risks. Specifically, adding caffeine to alcohol increases the quantity of alcohol consumed and decreases subjective feelings of intoxication, however objectively-measured blood alcohol concentration and cognitive/motor impairment remain unreduced. Consumption of energy drinks has risen markedly in the U.S. in the past decade with hundreds of energy drink brands targeting young people. Rising rates of combining energy drinks with alcohol may lead to more severe alcohol-related consequences and problems, yet little is known regarding situational covariates, potential longer-term consequences, or individual risk factors of AED use. The proposed behavioral study will document the consequences of AED consumption among a multi-ethnic sample of college students (N=746), utilizing within-person data on energy drink, alcohol, and AED use. Using a measurement burst design, with 14 consecutive days of data collected in each of 4 consecutive semesters (56 days per participant), this study will address important gaps in the extant knowledge by documenting characteristics of persons, semesters, and days associated with greater risk of AED use, as well as the extent to which AED use predicts the emergence of alcohol-related problems longitudinally.
Aim 1 is to test hypotheses about daily-level covariations of AED use with behavioral risks, subjective intoxication, estimated blood alcohol content (eBAC), and health effects.
Aim 2 is to document short-term longitudinal consequences of AED use, compared to alcohol use alone.
Aim 3 is to identify the risk factors for individuals at greatest risk for consuming AED. High quality within-person data are necessary to identify daily effects of AED use, consequences experienced by heavier users over time, and who is most at risk for use. This proposal is intended to provide essential information to support the development of an intervention program designed to reduce AED use and consequences.

Public Health Relevance

This research project is designed to examine the consumption of alcohol with energy drinks (AEDs). Existing secondary longitudinal and daily data will be used to document how days college students use AEDs differ from days they use alcohol alone;the consequences of AED use for subsequent alcohol use, academic outcomes, and physical health;and identifiable risk factors for individuals most likely to use AEDs. A primary goal of the study is to inform prevention research and provide the basis for an intervention to mitigate adverse consequences of AED use among college students.

Agency
National Institute of Health (NIH)
Institute
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Type
Exploratory/Developmental Grants (R21)
Project #
5R21AA021426-02
Application #
8517524
Study Section
Health Services Research Review Subcommittee (AA)
Program Officer
White, Aaron
Project Start
2012-08-01
Project End
2014-07-31
Budget Start
2013-08-01
Budget End
2014-07-31
Support Year
2
Fiscal Year
2013
Total Cost
$182,812
Indirect Cost
$49,131
Name
University of Michigan Ann Arbor
Department
Biostatistics & Other Math Sci
Type
Organized Research Units
DUNS #
073133571
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109
Patrick, Megan E; Evans-Polce, Rebecca J; Maggs, Jennifer L (2014) Use of alcohol mixed with energy drinks as a predictor of alcohol-related consequences two years later. J Stud Alcohol Drugs 75:753-7
Patrick, Megan E; Maggs, Jennifer L (2014) Energy drinks and alcohol: links to alcohol behaviors and consequences across 56 days. J Adolesc Health 54:454-9