261411 Additive interaction of binge drinking frequency and intensity on alcohol-impaired driving among binge drinking adults in the United States: Findings from the Behavioral Risk Factor Surveillance System, 2010

Tuesday, October 30, 2012

Xiao-Jun Wen, MD , Division of Behavioral surveillance, Office of Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA
Chaoyang Li, MD, PhD , Division of Behavioral surveillance, Office of Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA
Guixiang Zhao, MD, PhD , Division of Behavioral surveillance, Office of Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA
Catherine Okoror, PhD, MS , Division of Behavioral surveillance, Office of Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, GA
Lina Balluz, ScD, MPH , Environmental Health Tracking Branch, Division of Environmental Hazards and Health Effects, Centers for Disease Control and Prevention, Atlanta, GA
Background. In 2009, alcohol-related vehicle crashes contributed to 10,839 deaths in the United States. Studies have shown that binge drinking (i.e. men having ≥5 drinks and women having ≥4 drinks on one occasion) is strongly associated with alcohol-impaired driving (AID). However, little is known about the additive interaction between binge drinking frequency and intensity on AID. Purpose. To examine the possible additive interaction between frequency and intensity of binge drinking on AID.

Methods. A cross-sectional study was conducted using Behavioral Risk Factor Surveillance System 2010 data. Additive interaction was examined by using the relative excess prevalence due to interaction (REPR), the attributable proportion due to interaction (AP), and the synergy index (S).

Results. Binge drinkers who reported having >2 binge drinking episodes in the past 30 days, and >5 drinks per episode for women and >6 drinks per episode for men accounted for 28% of all binge drinkers and 50% of all who reported AID. Among adults who reported having >2 binge drinking episodes in the past 30 days and >5 (women)/>6 (men) drinks per episode, prevalence of AID was 18.7%. After adjusting for covariates, prevalence ratio of AID was 3.1 compared to adults who reported having 4-5 (women)/5-6 (men) drinks per episode and 1-2 binge episodes in the past 30 days. Binge drinking frequency and intensity appeared to have additive interaction (REPR=1.1, AP=0.3, and S>1) on AID.

Conclusions. This study provides further support for binge drinking prevention initiatives that may potentially save lives from alcohol-related vehicular crashes.

Learning Areas:
Epidemiology
Public health or related research

Learning Objectives:
Evaluate the interaction between binge drinking frequency and intensity on alcohol-impaired driving.

Keywords: Alcohol Use, Safety

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have been the principal invistigator at CDC focusing on binge drinking and related health outcomes incluidng trafic safety, health-related quality of life, and HIV risk behaviors.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.

Back to: 4257.0: Social and Descriptive Epidemiology of Substance Use